essay on java

Java is the best programming language Essay

I consider Java as the best programming language due to its small language vocabulary, portability and simplicity. Java has a small and regular vocabulary; a programmer can easily master and grasp .Any computer program written in Java can run and execute on any operating system hence compatibility with all operating systems.

Java was developed and released in 1995, much later after C and C++. As such it tends to solve some of the shortcomings cited in C and C++.For instance, it uses Javadoc, a documenting system that develops a systematic and organized method for documenting codes (Pawlan 1999).

It also uses Byte code verifier which enhances correctness and security of the compiled code hence reducing the number of runtime checks. This implies that with the knowledge of Java, one can comfortably take up programming tasks in C and C++ or any other language. Java is also purely object oriented, easy to interpret and has high execution performance. This makes it simple and easier to work with. For this reason, Java is sometimes referred to as “a powerful yet easy to learn and work with language” (Pawlan 1999).

Java is the most widely used programming language by web developers for both simple complex programming tasks. Due to its much simplified user platform, most people tend to have a general notion that Java cannot be used to create much complicated web applications due to its simple platform.

This is not true since most programmers use Java to write complex programs in a simple way easy that is to follow and interpret. Java was developed to write more complex programs in a simpler language. Even the most complex and sophisticated programs look so simple in Java making it hard to realize their complexity (Lindholm & Yellin 1999).

It is considered flexible; due to incremental development in terms of object- oriented features, coupled with Java’s simplicity, it is possible to rapidly develop applications and easily change them at will. This offers much freedom to the programmer to make changes to the program whenever he deems fit to do so.

It has the ability to develop robust and secure programs. It is also used to break down and portably distribute some complex programs. These features, together with its simple user platform, have made it find extensive application in programming tasks.

Java is the best in compilation and execution speed. Initially, most developers avoided using Java in more complex tasks due to its slow speed. Much effort was put in place to improve its speed and as a result, today, Java speed is comparable to C or C++ for equivalent tasks. With this speed, plus its improved performance characteristics, it is the best programming language (Gosling & Joy 2005).

Consequently, in modern programming, speed does not majorly rely on the language used, but also on the memory card capacity and processor speed. Java therefore, enables a programmer to write codes which compile fast and have few runtime checks using Java than in any other programming language. In this line, Java does not only offer a fast compilation process, but also better programs, with few errors and which can be run on any operating system.

Basing on speed, simplicity and the extent of application; Java no doubt, is the best programming language. It is so simple to use, with a user friendly language vocabulary and so fast in compilation these have made it the widely used language in programming. Its improved features regarding the aforementioned aspects make it more preferable than any other programming language. Hence, Java is the best programming language.

Works Cited

Gosling, James and Joy, Bill . The Java Language Specification . Boston: Addison – Wesley. 2005. Print.

Lindholm, Tim and Yellin, Frank. The Java Virtual Machine Specification . Boston: Addison-Wesley. 1999. Print.

Pawlan, Monica. Essentials of the Java Programming Language .1999. New York: McGraw. Print.

• Chicago (A-D)
• Chicago (N-B)

IvyPanda. (2018, December 28). Java is the best programming language. https://ivypanda.com/essays/java-is-the-best-programming-language/

"Java is the best programming language." IvyPanda , 28 Dec. 2018, ivypanda.com/essays/java-is-the-best-programming-language/.

IvyPanda . (2018) 'Java is the best programming language'. 28 December.

IvyPanda . 2018. "Java is the best programming language." December 28, 2018. https://ivypanda.com/essays/java-is-the-best-programming-language/.

1. IvyPanda . "Java is the best programming language." December 28, 2018. https://ivypanda.com/essays/java-is-the-best-programming-language/.

Bibliography

IvyPanda . "Java is the best programming language." December 28, 2018. https://ivypanda.com/essays/java-is-the-best-programming-language/.

• The Java and C++ Languages Comparison
• Object-oriented Programming. Java and C++ Programming
• Java, Lisp, Clojure and RAM-RAL
• C++ and Java Programming Languages Comparison
• The Development of the Java 2 Enterprise Architecture (J2EE)
• Java Engagement for Teacher Training Workshop
• Career Options for a Computer Programmer
• Anthropology Issues: Extinct Hominid Java Man
• Methods Used to Develop Java Applications for Government Projects
• Combining Programming Languages C++ and Python
• Levels of Computer Science and Programming Languages
• Hyper Text Markup Language (HTML)
• Reasons why developing software for wireless devices is challenging
• Ethical analysis of illegal downloading and the effects of it
• Technology Impact on Human Civilization

Protect your data

We use cookies to provide our services, improve the user experience, for analysis and marketing purposes. By giving your consent, you also agree that your data may be transferred to the USA by the use of cookies. You can revoke your consent at any time. You can find further information in our privacy policy and cookie policy.

Java: Everything a Beginner Needs to Know

Written By David Wintrich

Edited By Liz Eggleston

Course Report strives to create the most trust-worthy content about coding bootcamps. Read more about Course Report’s Editorial Policy and How We Make Money .

Want help finding the best school for you?

Schools in this article.

Table of Contents

What is java, is java a good first coding language for beginners, working as a java developer, disadvantages/alternatives to java, how can i get started learning java.

What are the benefits of learning Java as your first programming language? Is Java just too hard to learn in 14 weeks? When starting out in tech and choosing a coding bootcamp, it’s difficult to know which language to focus on. Tech Elevator co-founder David Wintrich teaches Java at their Ohio coding bootcamp, and believes it is a great first language for beginners to learn. David explains the origins of Java, the advantages (and disadvantages!) of Java, which companies build software using Java, and the demand for Java developers. Plus get tips on how to get started learning Java!

• Java is a general purpose programming language , much like Python or JavaScript.
• The language itself is specifically an object oriented programming language , so bears similarities to C++, C#.
• Java is also a platform, which means that Java code can run on any machine that has a Java Virtual Machine (JVM) on it. Originally those two things were interchangeable, and the only thing that ran on the JVM was Java. But since that time, a number of languages have been written which can run on the Java platform, languages like Scala, Groovy, an implementation of Ruby called jRuby, and an implementation of Python called Jython.

WHAT ARE THE ORIGINS OF JAVA?

Java was created by a team at Sun Microsystems, was released in 1995 and was subsequently acquired by Oracle.

A primary goal of the Java creators was to develop a language that could run on consumer appliances – so the designers were already contemplating a world in which there was code running on your refrigerator or toaster – what we now call the internet of things . We’ve only recently started creating devices which benefit from such a language, so in the mid-1990s, they were way ahead of their time. But that goal drove a lot of the architecture of Java. One of its major selling points was “write once, run anywhere,” so in other words you could write one piece of code, then it could be compiled to run on any device.

Ironically, Java did not gain popularity for that reason; instead its creators were able to take advantage of something else that came out in the mid-1990s: the world wide web. Java had a feature where you could write things called applets , small programs which could run inside of a web browser, and as the web was gaining popularity, Java rode that wave and became extremely successful and popular. So a lot of web applications were written in Java, even though that wasn’t what the creators had in mind when they first conceived the language.

The creators of Java were strongly influenced by existing programming languages like C and C++ , with which Java shares a lot of syntactic similarities. They used these languages as an example of how not to do things, so there were certain features that the creators of Java explicitly decided not to include, because they had been troublesome for programmers using C and C++.

STATICALLY-TYPED VS DYNAMICALLY-TYPED

Java is a statically typed language, whereas Ruby, Python, and JavaScript are dynamically typed languages. People tend to get pretty passionate about the difference between statically typed and dynamically typed languages.

Dynamically Typed:  If you’ve had any exposure to programming, you’ll be familiar with the idea of a variable. In a dynamically typed language like Ruby or JavaScript, you can declare a variable without having to say what type of data you want to put into that variable. The variable is dynamic; it can be anything – a number or a sentence etc.

Statically Typed:  When dealing with data in a statically typed languages like Java, we have to declare what each variable will hold. For example, this variable will hold numbers; that other variable will hold text, and another variable will hold dates, and so on. This means that a statically typed language has a bit more structure to it. There are certain mistakes a programmer can make, which can be caught by the development tools we use with Java before you even run the program. Whereas if you’re working with a dynamically typed language like Ruby or JavaScript, you don’t know you have a problem until you run the code and it fails in some way.

I tend to prefer statically typed languages. I think it’s good for somebody to learn a statically typed language first, because there is an extra layer of code that you need to think about, and it makes variables more explicit. In my experience, it’s easier for people who have learned a statically-typed language first to then learn a dynamically-typed language, than it is the other way around.

WHICH LANGUAGES HAS JAVA GIVEN RISE TO?

On the one hand, some of the languages built for JVM, such as Scala and Groovy, are languages created to run within the Java environment. One might argue that Java had a great deal of influence on the development of C#. Microsoft’s C# language was developed after Java, and certainly took a lot of inspiration from Java. C# also also helped make improvements on Java, so those two languages have gone back and forth influencing each other.

HOW IS JAVA DIFFERENT FROM JAVASCRIPT?

There is no technical relationship between Java and JavaScript at all. JavaScript was developed by Netscape in the mid-90s, originally called LiveScript. Nobody was using it, so Netscape saw Java getting all this publicity and hype, and they basically rebranded Livescript as JavaScript to siphon off some of that excitement. And it worked – JavaScript became popular. But from a technical perspective there is no relationship between the two, they just bear similar names. The only technical similarity is that they both derive their syntax from the C programming language. For that reason, if you are familiar with Java, then it’s pretty easy to pick up JavaScript and vice versa.

WHICH FRAMEWORKS SHOULD I USE WITH JAVA?

The nice thing about Java is that it’s meant to be a very general purpose language, so it’s used in lots of different environments. It’s explicitly intended to run on lots of different platforms, so you can run it on your Linux machine, Unix box, Mac, Windows, or your cell phone. So I would say that it’s can be used with just about anything.

There are a lot of reasons that Java is a good first programming language:

• Java has been around for such a long time, so it’s really well established. There are a lot of great books, online resources.
• There are probably more Java programmers than any other type of programmer in the world, so a lot of people already know Java and it’s easy to find people who can help you out and mentor you.
• Java derives its syntax from C, and lots of other languages also derive their syntax from C, so if you learn Java, then learning a language like Javascript, C#, or C++ is much easier.
• It’s an object-oriented language, so a lot of the foundational concepts you learn inside of Java are transferable to other languages.

WHY DOES TECH ELEVATOR TEACH JAVA?

From the moment we founded Tech Elevator , we recognized that our prospective students were coming to us not to acquire new hobby or because of academic curiosity, but because they were interested in a new job and a new career. We know we can teach people how to code using any programming language, and once they learn their first programming language, learning a second or third one is much easier. So in some sense it doesn’t matter what your first language is. But our perspective was that if we’re going to teach you how to code, we might as well teach you a language which will help you get a job. We saw that Java was the number one in-demand language in the country. Right now Java and C# are the two most in-demand languages, so those are the languages that we teach at Tech Elevator. If Ruby became the most in-demand language tomorrow, then we would look into teaching Ruby.

David leads a Java class at the Tech Elevator Cleveland campus.

Is java too hard to learn at a coding bootcamp.

At this point we’ve had over 100 graduates from our Java coding bootcamps get jobs, so that is good evidence that it’s not too hard. However, if you’re trying to self-teach, Java is a really daunting language and platform to try to jump into.

At Tech Elevator, we use specific techniques to make sure our students are successful:

• We employ really experienced programmers as our instructors ; people with an average of 20 years experience, who have been in the field for some time. They already know the lay of the land, and can act as very good trail guides for our students.
• We have a fairly rigorous admissions standards for our bootcamp, so not everybody will get in. We look for people whom we think are up to the task of learning the material.
• We refine and improve our class every single time we graduate a cohort. That can mean using better examples, better exercises, or better projects – we’re constantly trying to step our game up to make this material accessible.
• We take a bit of extra time to teach Java. Part of the reason that Tech Elevator has been a 14-week coding bootcamp from the beginning is because we are teaching Java.

HOW DO REAL DEVELOPERS USE JAVA IN THEIR JOBS?

Most often Java is used to build large enterprise class applications . Java works great within corporate environments, or if you’re building a very large scale system. Although it can be used for small tasks, it’s less suited for that. In Dev Ops, where you need to create quick scripts, Java might be a little too heavyweight.

Java is pretty ubiquitous at this point – you name it and Java is being used for it somewhere:

• Companies like Google and Amazon use Java quite a bit
• Building really huge online systems.
• Writing programs for your Android phone specifically.
• Writing code for small embedded devices.

CAN A JAVA DEVELOPER ALSO BE AN ANDROID DEVELOPER?

Yes, our Java students at Tech Elevator do get Android development jobs. The main difference is that on the Android phone, Java is not really using the JVM; instead it’s compiling the source code specifically for the Android runtime, which is transparent to the programmer. From a programmer’s perspective you’re still writing Java, but when that code ultimately runs on the phone it looks very different from the code I might write for a web app. But in terms of source code, the code you’re writing is the same.

WHAT KINDS OF JOBS CAN I GET IF I KNOW JAVA?

I tell students that my intent isn’t to create a Java programmer; we’re teaching you to be and think like a programmer. We happen to be teaching Java as a vehicle for getting there, but everything you learn about Java can be transferred into other languages , so we try to give our students a really strong foundation to learn on their own. Part of being a programmer is always being able to learn.

Because we give students that strong foundation, we have had plenty of students graduate from our Java program and get jobs doing C# development. We’ve had students go through our C#  program and get jobs doing Ruby development. And we’ve had students from both programs get jobs doing JavaScript and Python development. Our philosophy is that learning the first programming language is the hardest, but if you learn it the right way, and focus on the fundamentals and foundational knowledge, then you’re well positioned to go out and get a job developing in another language.

WHICH COMPANIES ARE HIRING JAVA DEVELOPERS IN OHIO?

Some of our biggest hiring partners are banks like JP Morgan Chase and KeyBank, which are both big Java shops. A number of Java grads have been hired by Progressive Insurance, even though that’s primarily a C#/.NET shop. We’ve also had graduates get jobs at startups building small web applications. It’s all rooted in the fact that Java is so widely used, so our students have found a wide variety of roles. 

If there is any disadvantage, it can be a fairly steep learning curve for a beginner. Java has been around for a long time, so the good part about it is that, you name it, there will be some library or framework for your task, and there is a very helpful open source community around Java. So that all sounds good, but it can be bad at the beginning because you just don’t know where to start. It’s this enormously broad ecosystem , and if you’re trying to learn on your own, it can be a bit of a daunting environment to enter, compared to some other languages. That’s one of the value propositions of a coding bootcamp like Tech Elevator – we can help focus you on the things you really need to know.

From a technical perspective, a disadvantage could be if you’re doing a very lightweight, quick task, writing a quick script or something like that, then Java is not your go to tool. It’s better suited for larger and more complex applications.

IS JAVA CLOSED SOURCE OR ARE THERE OPEN SOURCE IMPLEMENTATIONS OF JAVA?

Yes, the Java language itself is open source. None of the tools we use are proprietary, so all the frameworks and libraries we make use of in our classes are open source. Java is totally free to develop with. Some people have a perception that Java is not open source because of the affiliation with Oracle, and in fact, the Oracle implementation of the Java Development Kit (JDK), is not provided under an open source license. However, OpenJDK is a completely open source implementation of the JDK and the two implementations are practically identical.

WHAT ARE THE ALTERNATIVES TO JAVA?

The language that is the most analogous and used for similar purposes is the C#/.NET stack from Microsoft. 

• Dabble in another language. If you like coding or programming, you will likely enjoy programming in any language. My advice for people who haven’t had exposure to coding at all is to go out and try coding in any language. Try JavaScript to see if you like programming, then look to see what jobs are available, and that will lead you to Java or C#.
• Read books and use online resources. If you want to try out Java, there are plenty of free and online resources. One free book we use in our classes is Intro to Programming Using Java , written by Dr. David Eck, a CS professor at Hobart and William Smith Colleges. The first edition was in 1996, and it’s up to version 7.0 now. It’s a really great resource and I definitely recommend it.
• Go to a Java Meetup. Java has been around so long, and there are probably Java user groups in just about every city. In Cleveland, Tech Elevator hosts and organizes meetups through the Java User Group , which is always a great resource to meet people.

If I were giving advice to someone contemplating getting into programming, I wouldn’t get too hung up on the language if you’re just dabbling. Just choose a language and go with it. Once you become more serious about programming, the language will become more important.

Find out more and read Tech Elevator reviews on Course Report. Check out the Tech Elevator website.

About The Author

David Wintrich

David is the Co-Founder and Chief Academic Officer at Tech Elevator coding bootcamp in Ohio. David has more than 12 years of experience developing software systems at Fortune 500 companies, and for the US Government.

Also on Course Report

Career services at 4geeks academy.

Find out about career support at 4Geeks Academy!

Tour BrainStation's Toronto Campus!

Take a virtual tour of BrainStation's campus in The Well...

How to Get Into Hack Reactor

Find out what it takes to get into Hack Reactor

Learning Product Management at GA

Find out what you'll learn in General Assembly's part-time Product Management Course!

Introducing Springboard's AI Chatbot!

Find out how Springboard's AI chatbot supports students as they learn technical skills!

Chegg Skills' Part-Time Bootcamp

Find out what you can expect from the part-time Software Engineering Bootcamp!

Online Student Support at LearningFuze

Find out what student support looks like for online bootcampers at LearningFuze!

Learn AI skills at DigitalCrafts!

Learn AI fundamentals and machine learning in the certificate programs at DigitalCrafts!

Learn In-Person at LearningFuze

Get a feel for LearningFuze's in-person campus in Irvine, CA!

Codecademy vs Codecademy Pro

Our tips for choosing the free version of Codecademy vs the paid Pro version!

Get our FREE Ultimate Guide to Paying for a Bootcamp

Get matched in minutes.

Just tell us who you are and what you’re searching for, we’ll handle the rest.

• Blogs by Topic

The IntelliJ IDEA Blog

IntelliJ IDEA – the Leading Java and Kotlin IDE, by JetBrains

• Twitter Twitter
• Facebook Facebook
• Youtube Youtube

25 Things We Love About Java

JetBrains loves all programming languages, and developers of all types! This May, Java turns 25 years old! So we want to pay it special attention, and celebrate 25 things we love about Java and the JVM.

Backwards Compatibility

Java is almost unique in being able to run code from 25 years ago on a modern version of Java. The language developers take backwards compatibility very seriously, and because of this many organisations are happy to make Java their primary development platform, knowing that the code will still run on the JVM for years to come.

There are plenty of advantages to having been around for a long time. For the last 25 years, developers have been writing applications in Java for a huge range of industries and business types, and for different platforms. Meanwhile, over these 25 years, developers have been learning Java in schools, universities, boot camps, and on the job. This has created a large ecosystem that has had time to learn from experience and continues to grow. Java, and the problems it can solve, is well documented and well supported by vendors and non-profit organisations and individuals . Very importantly for developers like us, the maturity and broad adoption of Java means there are plenty of jobs for developers who want to code in Java!

Constant Improvement

In contrast to backwards compatibility and maturity, is the evolution of the platform and the language. Since 2017 (Java 9) there’s been a new release every six months, which has enabled a steady stream of changes and improvements to the language. Combined with Preview Features , the language is able to experiment with new syntax, get feedback from developers, and then standardise new features that really work well for those who use the language.

Java has a difficult balance to strike between backwards compatibility and embracing the future. The current approach of valuing backwards compatibility and releasing every six months, but with a Long Term Support release every three years, seems to strike the right balance. The language is able to evolve by providing warnings for deprecated features that will be removed , and by having replacements for anything that might go away.

Those who wish for extra stability can stay on a Long Term Support release. To reduce their risk when it does come time to upgrade, they could be regularly testing against every new release. Those who are happy to upgrade every six months can update to the latest version of Java every time it comes out. Developers who want to try out new syntax even before it’s standardised can enable preview features , and those who want to do so as soon as possible can even use the Early Access release of a version that’s not out. Teams using modern versions of Java really can have the best of all worlds.

Standards might not be as exciting to a developer as language features, but having standards for Java, for Java EE and Jakarta EE , and for common use-cases that developers run into, does make a developer’s life easier. Understanding how to use JDBC to talk to a database means that we don’t have to care about how the database driver is implemented, the way we interact with it is always the same. The JCP is one of the processes used to determine standards for Java.

The Java Language Specification covers what Java-the-language looks like and how the compiler should work. It includes the Java Memory Model , which can help us to predict how an application might behave, regardless of JVM or hardware. The Java Virtual Machine Specification covers the lower-level details down in the JVM. These specifications enable JDKs distributed by different vendors, running on different platforms, to behave in specified, predictable ways. Which leads us to…

Write Once Run Anywhere

WORA was one of the original ideas behind Java, which seems so obvious these days that we might not even realise how ground-breaking it was. I remember working for a very, very large organisation who, back in 2002, switched from their previous technology stack to Java simply because they had a lot of different hardware lying around, and being able to run new Java applications on it instead of having to buy specific hardware for applications was one of the main reasons they moved all their development to Java. In this day and age of Cloud this might seem less relevant, but in fact just because we don’t always see WORA in action does not mean we’re not still taking advantage of it. And of course, if you’re using IntelliJ IDEA (or NetBeans) you’re taking advantage of WORA on the desktop.

Performance

It sometimes comes as a surprise to those who are less familiar with Java, but Java is a very high-performance language. It’s a mature platform that has 25 years of performance improvements; numerous garbage collectors with different performance profiles; and the JVM optimises our code at runtime for our real production use-cases far better than most human developers ever could. Java is used extensively in the finance world, for example, which depends on low-latency transactions and predictable performance.

Memory Management and Garbage Collection

Automatic Garbage Collection is something else that, 25 years on, we generally take for granted. We don’t have to think about how memory is allocated in our applications, or how to free it. Each JVM has one or more different GC algorithms, so we can pick one that works well for our application without having to concern ourselves too much with the internals, we can just get on with writing the business logic for our applications.

Observability and Management

If we are interested in what’s going on while our application is running, there are a huge number of tools available to us. Many of them are even free, particularly since Java Flight Recorder and Mission Control are now part of OpenJDK (since Java 11). Tools like JMX even allow us to dynamically manage our applications too.

The Java Virtual Machine (JVM)

Many of the features we’ve just mentioned are features of the JVM , but we specifically want to call out the JVM, and the fact that it’s separate from Java-the-language. There are many reasons to love the JVM, including some of the things we’ve already covered: WORA, runtime optimisations, performance, vendor choice, etc., much of which is made possible because of standards and specifications. It’s important that the JVM is separate from Java-the-language, too. It means different languages can be built upon the platform, taking advantage of all the great features of the JVM we’ve just mentioned while providing different types of syntax and language features.

Other JVM Languages

One of the reasons Java survived, even thrived, in those quiet years between Java 6 and 8 (Java 7 has some great features but it didn’t feel like a big release for Java developers) is because of the other JVM languages. At JetBrains of course our favourite is Kotlin , but the JVM is a platform for other popular languages like Groovy , Scala , Clojure and JRuby , and a huge number of other new and re-implemented languages . In many cases, interoperability between these languages and classic Java helps us to embrace and leverage this variety.

Libraries and Frameworks

One of the most compelling arguments is the huge amount of choice of libraries and frameworks we have, many of which are Open Source and free to use. Popular frameworks like Spring , and Spring Boot in particular, make it easy to create anything from small services to large and complex enterprise applications. Standards mean that often it’s not hard to understand and use a library when we’ve been using something similar in another context. The maturity of Java, and the community’s early adoption of open source, means that there’s usually an existing solution for standard problems; there’s no need to re-invent the wheel. It also means that since many of these solutions have been around, and in use, for a long time: they’re well tested, well understood, and well documented.

Build Tools and Dependency Management

Long gone are the days when a poor developer had to search on the internet for some unknown JAR file containing some class that the code they are trying to run apparently requires. Maven and Gradle, in particular, made it easy to build and deploy an application, of course, but also to set up a project in a standard way with all the required dependencies. It’s straightforward to start coding in either a new or existing project. Public repositories like Maven Central and Bintray give us well-known places to find (and publish) libraries.

JUnit and Automated Testing

JUnit was created in 1997 so is nearly as old as Java itself!  It is by far the most common automated testing framework in the Java world, and both JUnit and TestNG are shipped with IntelliJ IDEA since it’s assumed a testing framework will be needed with any new Java project. It’s likely that modern testing frameworks for a whole range of languages are based on the ideas we now take for granted from JUnit. The Java community’s culture of automated testing owes a lot to this one library.

This is the IntelliJ IDEA blog, we weren’t going to forget this one! Whether you believe the verbosity of Java requires an IDE, or that actually Java can really leverage an IDE because of its static typing, the fact is that Java developers love their IDEs (and we love you!). Learning to use an IDE effectively (whether it’s IntelliJ IDEA, Eclipse, or NetBeans) can significantly improve a developer’s productivity, via: code completion and generation , running tests , debugging , navigation , and a bunch of other features . Java developers are usually extremely enthusiastic about the benefits an IDE brings.

The Java Community is a large, mature, vibrant, and welcoming community. There are Java User Groups in many cities worldwide, and a Virtual Java User Group if you can’t get to a physical meetup. The Java Champions are recognised technical leaders in the Java world who became known for sharing things that are useful or interesting for Java and JVM developers. Java has a huge Open Source community, including the JDK itself via OpenJDK . The Java Community values learning, teaching, and constant improvement, cares about standards and “best practice”, and is pragmatic about how to apply these in a real-world environment.

The Community is made up of people, of course, but when I asked what developers value most about Java, many of them specifically called out individuals in the Java world who had impacted them. These range from colleagues and teachers, to people like Brian Goetz , Angie Jones , Georges Saab , Mala Gupta , Venkat Subramaniam . Some people even mentioned me . Personally, I came to Java because I learnt it at university and there were plenty of jobs, but I stayed because I love the people and the help and support I’ve had from them.

Javadoc and Documentation

Java makes API documentation a key part of the language via Javadoc . The three different types of comments ( Javadoc , block and line) clearly indicates what sort of commentary a developer is leaving. Javadoc specifically encourages developers to leave helpful documentation for other developers who call a method, or use a class or package. If a developer cannot find detailed tutorial information on a library or piece of code, there’s usually Javadoc that can help point them in the right direction.

In addition, the Java ecosystem generally seems to expect (and provide) good quality documentation for developers. Prospective committers to open source projects are encouraged to submit pull request of Javadoc comments or other documentation, and developers all over the world ask and answer questions on StackOverflow , or blog about solutions to specific problems.

Open Source

Not only did the Java community embrace open source early on, but now the JDK itself is open source too via OpenJDK . Open source makes it easier for multiple vendors, and individuals, to be involved and collaborate. It’s also fascinating to be able to look at the code of Java itself. Open source code provides a great opportunity for developers like us to learn from people who have already done all the hard work thinking about and solving complicated problems.

The Java platform and many of the most popular tools used in the Java ecosystem don’t require a developer (or often even a profit-making organisation) to pay money to use them. Even after Oracle changed its licensing and support in Java 11 they (and many other vendors) still provided a way to use the language for free in production . The open source projects, build tools, and IDEs already mentioned in this article are all either free or have a free option. This makes Java appealing for developers getting started with coding, and for organisations of all sizes who need to build software while keeping an eye on the budget.

Object-Oriented

Object-oriented programming is not the only game in town, of course, and every paradigm has its advantages and disadvantages. Java was designed as an OO language right from the start, and many examples of design patterns and other coding best practice for OO are demonstrated in Java. If you want an object-oriented programming language, Java should be high on your list of ones to try.

Evolution and Adaptation

Java was, and still is, an object-oriented programming language. But it has also successfully adopted some concepts from functional programming (like lambda expressions and immutable data structures) and made them work nicely within the OO paradigm. Type inference (for example var ) allows us to still have the benefits of a statically typed language, but with less boilerplate. Computer science is still a relatively young discipline, yet as we learn things they can be applied to our existing tools. Java (the language and the whole ecosystem) is constantly evolving according to new trends and new “best practices”, and also as a result of seeing how things work out in the real world.

Java also gets to benefit from syntax and ideas from other JVM languages, to see what works and what perhaps might not fit in a classic Java world. Even the processes and tools that Java uses to evolve and grow, such as the JCP and OpenJDK , are also adapting themselves to stay relevant in this constant evolution. This evolution and adaptation is part of the careful balance Java has to strike.

Focus on Readability

Java code is often readable, even for non-Java programmers. The language leans towards being more verbose rather than over-concise, which makes it easier to reason about Java code when we’re reading it. The language developers have not implemented features like operator overloading, as they feel it’s important to not be surprised by unexpected custom behaviour. There’s a tendency to avoid “magic” in the language and the frameworks – although some frameworks will use things like Convention over configuration to do things without a developer having to be imperative about it. There’s definitely been a move away from,for example, doing lots of AOP with annotations , and more towards using annotations for documentation and static analysis checks. The community and ecosystem tend to like standards and “best practice”, so Java code often follows similar sorts of rules even on very different projects.

Language Features

We’ve covered 23 Things We Like About Java but haven’t mentioned a single feature! To be honest, it’s because limiting ourselves to just 25 features seemed extremely difficult, and also because lots of the things we love about Java are not about the syntax or features. We’d like to give an honourable shout out to some of developers’ favourite features:

• Collections API : it’s been with us a long time and served us well!
• Convenience factory methods for collections : makes creating unmodifiable collections so much easier.
• Streams API : a very nice addition to the collections API, and great to see it evolving even since Java 8. Parallel streams added a new way to utilise modern hardware.
• Lambda Expressions : particularly useful with the Streams API, but very handy in its own right.
• Optional : a nice way to express that a method might not give you something (and stops us having to protect against NullPointerExceptions!). Really nice to see each improvement to Optional since Java 8 as well.
• java.time : the latest API for working with date and time is a welcome improvement
• Checked exceptions : people are divided on checked vs runtime exceptions, but at least checked exceptions are there for those who wish to use them.
• Annotations : annotations are like (among other things) documentation that the compiler can check, or notes for a framework to do some heavy lifting.
• JShell : now we can play with Java in a REPL
• var : type inference helps reduce code noise if used sensibly
• Access modifiers and modularity : Java makes it easy (even more so since Java 9) to be explicit about which code can access which fields, methods, classes, and modules.
• Switch expressions : now if we use switch it’s a lot less ugly!
• Helpful NullPointerExceptions : who doesn’t love a good NullPointerException? Now the exceptions give developers much more useful information about what was null.
• Preview features : we love preview features! We’re very excited about Records ; Pattern matching for instanceof ; and Text Blocks .

We’re getting new features every six months, and each of the LTS releases usually provides better performance out of the box for any application running on it. Java 15 (September 2020) should have: Hidden Classes ; Text Blocks (no longer preview); updated previews for Records; Pattern matching for instanceof; and a preview of Sealed Classes .

Further into the future we also hope to see: easy to use, lightweight concurrency with Project Loom ; Inline Types from Project Valhalla ; more language changes from Project Amber, like lambda leftovers; Project Panama will make it easier for programmers to access foreign APIs; shorter startup times thanks to Project Leydon ; more improvements to various Garbage Collectors; and so much more.

The future is bright for Java!

Subscribe to IntelliJ IDEA Blog updates

By submitting this form, I agree that JetBrains s.r.o. ("JetBrains") may use my name, email address, and location data to send me newsletters, including commercial communications, and to process my personal data for this purpose. I agree that JetBrains may process said data using third-party services for this purpose in accordance with the JetBrains Privacy Policy . I understand that I can revoke this consent at any time in my profile . In addition, an unsubscribe link is included in each email.

Thanks, we've got you!

Discover more

K2 Kotlin Mode (Alpha) in IntelliJ IDEA

Starting from the 2024.1 EAP, IntelliJ IDEA comes with an optional K2 mode. In this mode the IDE uses the K2 compiler for faster and more robust Kotlin code analysis.

Java Annotated Monthly – March 2024

This month's Java Annotated Monthly is packed with the latest Java news ahead of Java 22’s release in March. It's also full of Kotlin updates, tutorials for Spring and Hibernate, and more. If all that wasn’t enough, there's also a podcast featuring AI-generated music!  Simply put, it's full …

The New Terminal (Beta) Is Now in JetBrains IDEs

The new terminal (Beta) is now in JetBrains IDEs and will be available in the new UI starting from the 2024.1 version of the IDEs.

Java Annotated Monthly – February 2024

Welcome to the February edition of Java Annotated Monthly! We're excited to share this month’s collection of articles brimming with the latest Java news, including a list of the upcoming JEPs for Java 22. What’s more, you’ll also get to explore numerous informative blogs packed with Java tips and tu…

ESSAY SAUCE

FOR STUDENTS : ALL THE INGREDIENTS OF A GOOD ESSAY

Essay: Principles of Java programming

Essay details and download:.

• Subject area(s): Information technology essays
• Reading time: 23 minutes
• Price: Free download
• Published: 7 March 2018*
• File format: Text
• Words: 6,789 (approx)
• Number of pages: 28 (approx)

Text preview of this essay:

This page of the essay has 6,789 words. Download the full version above.

When used on the Internet, Java allows applets to be downloaded and used through a browser, which enables the browser to perform a function or feature not normally available. Unlike JavaScript, the users must download or install the applet or program before being able to utilize the Java program.

Below is an example of a Java applet from Sun and a method of testing if Java is installed on your computer. If Java is installed on your computer, you should see additional information about the installed Java version and your operating system.

Java is also used as the programming language for many different software programs, games, and add-ons. Some examples of the more widely used programs written in Java or that use Java include the Adobe Creative suite, Eclipse, Lotus Notes, Minecraft, OpenOffice, Runescape, and Vuze.

Java virtual machine (JVM)

Java is a high level programming language. A program written in high level language cannot be run on any machine directly. First, it needs to be translated into that particular machine language. The javac compiler does this thing, it takes java program (.java file containing source code) and translates it into machine code (referred as byte code or .class file).

A Java virtual machine (JVM) is an abstract computing machine that enables a computer to run a Java program. There are three notions of the JVM: specification, implementation, and instance. The specification is a document that formally describes what is required of a JVM implementation. Having a single specification ensures all implementations are interoperable. A JVM implementation is a computer program that meets the requirements of the JVM specification. An instance of a JVM is an implementation running in a process that executes a computer program compiled into Java bytecode.

Java Runtime Environment (JRE)

Java Runtime Environment (JRE) is a software package that contains what is required to run a Java program. It includes a Java Virtual Machine implementation together with an implementation of the Java Class Library. The Oracle Corporation, which owns the Java trademark, distributes a Java Runtime environment with their Java Virtual Machine called HotSpot.

Java Development Kit (JDK)

Java Development Kit (JDK) is a superset of a JRE and contains tools for Java programmers, e.g. a javac compiler. The Java Development Kit is provided free of charge either by Oracle Corporation directly, or by the OpenJDK open source project, which is governed by Oracle.

JVM Vs JRE Vs JDK

JRE: JRE is the environment within which the java virtual machine runs. JRE contains Java virtual Machine(JVM), class libraries, and other files excluding development tools such as compiler and debugger.

Which means you can run the code in JRE but you can t develop and compile the code in JRE.

JVM: As we discussed above, JVM runs the program by using class, libraries and files provided by JRE.

JDK: JDK is a superset of JRE, it contains everything that JRE has along with development tools such as compiler, debugger etc.

A class is a group of objects which have common properties. It is a template or blueprint from which objects are created. It is a logical entity. It can’t be physical.

A class in Java can contain:

o constructors

o nested class and interface

Syntax to declare a class:

Java Methods

A Java method is a collection of statements that are grouped together to perform an operation. When you call the System.out.println() method, for example, the system actually executes several statements in order to display a message on the console.

Now you will learn how to create your own methods with or without return values, invoke a method with or without parameters, and apply method abstraction in the program design.

Creating Method

Considering the following example to explain the syntax of a method

public static int methodName(int a, int b) {

public static modifier

int return type

methodName name of the method

a, b formal parameters

int a, int b list of parameters

Method definition consists of a method header and a method body. The same is shown in the following syntax

modifier returnType nameOfMethod (Parameter List) {

// method body

The syntax shown above includes

modifier It defines the access type of the method and it is optional to use.

returnType Method may return a value.

nameOfMethod This is the method name. The method signature consists of the method name and the parameter list.

Parameter List The list of parameters, it is the type, order, and number of parameters of a method. These are optional, method may contain zero parameters.

method body The method body defines what the method does with the statements.

Here is the source code of the above defined method called min(). This method takes two parameters num1 and num2 and returns the maximum between the two

/** the snippet returns the minimum between two numbers */

public static int minFunction(int n1, int n2) {

if (n1 > n2)

return min;

Object-Oriented

In this page, we will learn about basics of OOPs. Object Oriented Programming is a paradigm that provides many concepts such as inheritance, data binding, polymorphism etc.

Simula is considered as the first object-oriented programming language. The programming paradigm where everything is represented as an object, is known as truly object-oriented programming language.

Smalltalk is considered as the first truly object-oriented programming language.

Object means a real word entity such as pen, chair, table etc. Object-Oriented Programming is a methodology or paradigm to design a program using classes and objects. It simplifies the software development and maintenance by providing some concepts:

o Inheritance

o Polymorphism

o Abstraction

o Encapsulation

Any entity that has state and behavior is known as an object. For example: chair, pen, table, keyboard, bike etc. It can be physical and logical.

Collection of objects is called class. It is a logical entity.

Inheritance

When one object acquires all the properties and behaviours of parent object i.e. known as inheritance. It provides code reusability. It is used to achieve runtime polymorphism.

Polymorphism

When one task is performed by different ways i.e. known as polymorphism. For example: to convince the customer differently, to draw something e.g. shape or rectangle etc.

In java, we use method overloading and method overriding to achieve polymorphism.

Another example can be to speak something e.g. cat speaks meaw, dog barks woof etc.

Abstraction

Hiding internal details and showing functionality is known as abstraction. For example: phone call, we don’t know the internal processing.

In java, we use abstract class and interface to achieve abstraction.

Encapsulation

Binding (or wrapping) code and data together into a single unit is known as encapsulation. For example: capsule, it is wrapped with different medicines.

A java class is the example of encapsulation. Java bean is the fully encapsulated class because all the data members are private here.

Reasons for choice of java language

Java has been th e best programming languages created in last 20 years and has been gaining popularity every passing day. Although there were occasions when Java development slowed down, but with path breaking changes in form of Enum, Autoboxing and Generics in Java 5, Google s choice of language for Android apps development and performance improvement with Java 6, kept Java as top programming language. Also In terms of Job opportunities and popularity, Java outscore every one with lots of Jobs opportunity available. You can work on developing core Java based server side application, can even go for Android based mobile application development , J2EE web and enterprise applications.

Here are top 10 reason for Learning Java Programming Language

1) Java is easy to learn

Java has fluent English like syntax which makes it easy to read Java program and learn quickly. Once you are familiar with initial hurdles with installing JDK and setting up PATH and understand How Classpath works, it s easy to write program in Java.

2) Java is an object oriented programming Language

Java is an Object Oriented Programming language. Developing OOPS application is easier, and it also helps to keep system modular, flexible and extensible. You can use all key concepts like Abstraction, Encapsulation, Polymorphism and Inheritance. Java also promotes use of SOLID and Object oriented design principles in form of open source projects like spring, which make sure your object dependency is well managed by using dependency Injection principle.

3) Java has Rich API

Java provides API for networking, I/O, utilities, XML parsing, database connection, and almost everything. Whatever left is covered by open source libraries like Apache Commons, Google Guava and others.

4) Powerful development tools e.g. Eclipse, Netbeans

Eclipse and Netbeans has played huge role to make Java one of the best programming language. Coding in IDE is a treat, especially if you have coded in DOS Editor or Notepad. They not only help in code completion but also provide powerful debugging capability, which is essential for development and testing. Integrated Development Environment made Java development much easier, faster and fluent. Apart from IDE, Java platform also has several other tools like Maven and ANT for building Java applications, JConsole, decompilers, Visual VM for monitoring Heap usage etc.

5) Good collection of Open Source libraries

Open source libraries ensures that Java should be used everywhere. Apache, Google, and other organization has contributed lot of great libraries, which makes Java development easy, faster and cost effective. There are framework like Spring, Struts, Maven, which ensures that Java development follows best practices of software craftsmanship, promotes use of design patterns and assisted Java developers to get there job done.

6) Great community support

Community is the biggest strength of Java programming language and platform. Java has lots of active forums, Stackoverflow, open source organizations and several Java user group to help everything. There is community to help beginners, advanced and even expert Java programmers. Java actually promotes taking and giving back to community habit. Expert programmer provides advice for FREE at various Java forums and stackoverflow.

7) Java is FREE

Since Java is free i.e. you don t need to pay anything to create Java application. This FREE thing also helped Java to become popular among individual programmers, and among large organizations.

8) Excellent documentation support with Javadocs

Javadocs is a great piece of documentation, which tells lot of things about Java API. Not everyone has time and intention to look at code to learn. Javadocs makes learning easy, and provide an excellent reference while coding in Java.

9) Platform Independent

Java s tag line write once run anywhere was the main reason of Java s popularity.This is still one of the reason of Java being best programming language, most of Java applications are developed in Windows environment and run in UNIX platform.

10) Java is everywhere

Yes, Java is everywhere, it s on desktop, mobile, almost everywhere and so are Java programmers. Organization prefers to choose Java for new development than any other programming language.

Having said that, programming is very big field and if you look at C and UNIX, which is still surviving and even stronger enough to live another 20 years, Java also falls in same league.

Java Organizational policy

Some organisations have policies on what software and hardware can be used, this may affect the decision on what language to use. For example Craven College uses the Windows Operating System because they teach programming using VB.NET, which requires Windows as it was developed by Microsoft. Another example would be that companies that develop applications for Apple devices would use Objective-C or Swift which are languages developed by Apple for use with their devices.

They also may have policies related on what language to use. Like Google has a policy to use Python which they use for most of their applications. This is chosen as the language Google uses because they focus a lot on making applications for the web.

Suitability of features and tools

The suitability of the features and tools of a programming language are important when choosing a programming language. With a wide variety of programming languages available, there are also many different features which are specific to certain languages. The company needs to analyse these features to ascertain whether the features can be used to meet the requirements of the system. They also need to consider whether the language only works with specific software/hardware.

Availability of Trained Staff

When choosing a language, an organisation should consider what past experiences the employees have with programming and if there is a common language that they all know how to use. They should also consider the skill level of each member of the team and whether they can develop their skill level enough for the language to be used. If the organisation is working on a project where they have to develop a new system and the organisation needs to recruit specialist, the organisation should choose a language that is more commonly used as it is more likely that there will be more experienced programmers in that language.

Reliability

Certain programming languages have features that allow the programmer to improve the reliability of their program. This can be because the programming language has combined features of the different programming paradigms or elements specific to the programming language such as a debugger and editor which identifies errors and stops the program from crashing.

Development and Maintenance

When continuously using a programming language, the company has to think about the development and maintenance costs of the software. They need to consider how much the software license is and for how long they will be using the software for. Some languages are easy to develop and maintain but are also inexpensive.

Expandability

Expandability is key when choosing a programming language. The company needs to choose a language that is easily expandable and allows the programmers to create a program that can sustain multiple users without crashing. Some programming languages are more expandable than others and have features that can support the larger systems that may be programmed.

Uses of Specific Programming Languages

Below are some common websites that use specific programming languages and also some popular companies that use specific programming languages.

Object Methods

A method in object-oriented programming (OOP) is a procedure associated with a message and an object. An object is mostly made up of data and behavior, which form the interface that an object presents to the outside world. Da ta is represented as properties of the o bject and behavior as methods. For example, a Window object would have methods such as open and close, while its state (whether it is opened or closed) would be a property.

In class-based programming, methods are defined in a class, and objects are instances of a given class. One of the most important capabilities that a method provides is method overriding. The same name (e.g., area) can be used for multiple different kinds of classes. This allows the sending objects to invoke behaviors and to delegate the implementation of those behaviors to the receiving object. A method in Java programming sets the behavior of a class object. For example, an object can send an area message to another object and the appropriate formula is invoked whether the receiving object is a rectangle, circle, triangle, etc.

Let us now look deep into what are objects. If we consider the real-world, we can find many objects around us, cars, dogs, humans, etc. All these objects have a state and a behavior.

If we consider a dog, then its state is – name, breed, color, and the behavior is – barking, wagging the tail, running.

If you compare the software object with a real-world object, they have very similar characteristics.

Software objects also have a state and a behavior. A software object’s state is stored in fields and behavior is shown via methods.

So in software development, methods operate on the internal state of an object and the object-to-object communication is done via methods.

Inheritance in java is a mechanism in which one object acquires all the properties and behaviors of parent object. The idea behind inheritance in java is that you can create new classes that are built upon existing classes. When you inherit from an existing class, you can reuse methods and fields of parent class, and you can add new methods and fields also.

Inheritance represents the IS-A relationship, also known as parent-child relationship.

Why use inheritance in java

For Method Overriding (so runtime polymorphism can be achieved).

For Code Reusability.

Syntax of Java Inheritance

1. class Subclass-name extends Superclass-name

3. //methods and fields

The extends keyword indicates that you are making a new class that derives from an existing class. The meaning of “extends” is to increase the functionality.

In the terminology of Java, a class which is inherited is called parent or super class and the new class is called child or subclass.

Java Inheritance Example

As displayed in the above figure, Programmer is the subclass and Employee is the superclass. Relationship between two classes is Programmer IS-A Employee.It means that Programmer is a type of Employee.

1. class Employee{

2. float salary=40000;

4. class Programmer extends Employee{

5. int bonus=10000;

6. public static void main(String args[]){

7. Programmer p=new Programmer();

8. System.out.println(“Programmer salary is:”+p.salary);

9. System.out.println(“Bonus of Programmer is:”+p.bonus);

Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object. Any Java object that can pass more than one IS-A test is considered to be polymorphic. In Java, all Java objects are polymorphic since any object will pass the IS-A test for their own type and for the class Object. It is important to know that the only possible way to access an object is through a reference variable. A reference variable can be of only one type. Once declared, the type of a reference variable cannot be changed. The reference variable can be reassigned to other objects provided that it is not declared final. The type of the reference variable would determine the methods that it can invoke on the object. A reference variable can refer to any object of its declared type or any subtype of its declared type. A reference variable can be declared as a class or interface type.

Runtime Polymorphism in Java

Runtime polymorphism or Dynamic Method Dispatch is a process in which a call to an overridden method is resolved at runtime rather than compile-time.

In this process, an overridden method is called through the reference variable of a superclass. The determination of the method to be called is based on the object being referred to by the reference variable.

Let’s first understand the upcasting before Runtime Polymorphism.

When reference variable of Parent class refers to the object of Child class, it is known as upcasting. For example:

1. class A{}

2. class B extends A{}

1. A a=new B();//upcasting

Example of Java Runtime Polymorphism

In this example, we are creating two classes Bike and Splendar. Splendar class extends Bike class and overrides its run() method. We are calling the run method by the reference variable of Parent class. Since it refers to the subclass object and subclass method overrides the Parent class method, subclass method is invoked at runtime.

Since method invocation is determined by the JVM not compiler, it is known as runtime polymorphism.

1. class Bike{

2. void run(){System.out.println(“running”);}

4. class Splender extends Bike{

5. void run(){System.out.println(“running safely with 60km”);}

7. public static void main(String args[]){

8. Bike b = new Splender();//upcasting

9. b.run();

Encapsulation is one of the four fundamental OOP concepts. The other three are inheritance, polymorphism, and abstraction.

Encapsulation in Java is a mechanism of wrapping the data (variables) and code acting on the data (methods) together as a single unit. In encapsulation, the variables of a class will be hidden from other classes, and can be accessed only through the methods of their current class. Therefore, it is also known as data hiding.

To achieve encapsulation in Java

Declare the variables of a class as private.

Provide public setter and getter methods to modify and view the variables values.

Following is an example that demonstrates how to achieve Encapsulation in Java

/* File name : EncapTest.java */

public class EncapTest {

private String name;

private String idNum;

private int age;

public int getAge() {

return age;

public String getName() {

return name;

public String getIdNum() {

return idNum;

public void setAge( int newAge) {

age = newAge;

public void setName(String newName) {

name = newName;

public void setIdNum( String newId) {

idNum = newId;

Private, Public and Protected Class

You must have seen public, private and protected keywords while practising java programs, these are called access modifiers. An access modifier restricts the access of a class, constructor, data member and method in another class. In java we have four access modifiers:

3. protected

1.Private access modifier

The scope of private modifier is limited to the class only.

1. Private Data members and methods are only accessible within the class

2. Class and Interface cannot be declared as private

3. If a class has private constructor then you cannot create the object of that class from outside of the class.

Let s see an example to understand this:

Private access modifier example in java

This example throws compilation error because we are trying to access the private data member and metho d of class ABC in the class Example. The private data member and method are only accessible within the class.

private double num = 100;

private int square(int a){

return a*a;

public class Example{

public static void main(String args[]){

ABC obj = new ABC();

System.out.println(obj.num);

System.out.println(obj.square(10));

Compile – time error

2.Public access modifier

The members, methods and classes that are declared public can be accessed from anywhere. This modifier doesn t put any restriction on the access.

Public access modifier example in java

Lets take the same example that we have seen above but this time the method addTwoNumbers() has public modifier and class Test is able to access this method without even extending the Addition class. This is because public modifier has visibility everywhere.

Addition.java

package abcpackage;

public class Addition {

public int addTwoNumbers(int a, int b){

return a+b;

package xyzpackage;

import abcpackage.*;

class Test{

Addition obj = new Addition();

System.out.println(obj.addTwoNumbers(100, 1));

3.Protected Access Modifier

Protected data member and method are only accessible by the classes of the same package and the subclasses present in any package. You can also say that the protected access modifier is similar to default access modifier with one exception that it has visibility in sub classes.

Classes cannot be declared protected. This access modifier is generally used in a parent child relationship.

Protected access modifier example in Java

In this example the class Test which is present in another package is able to call the addTwoNumbers() method, which is declared protected. This is because the Test class extends class Addition and the protected modifier allows the access of protected members in subclasses (in any packages).

protected int addTwoNumbers(int a, int b){

class Test extends Addition{

Test obj = new Test();

System.out.println(obj.addTwoNumbers(11, 22));

Private methods in Java

When we use final specifier with a method, the method cannot be overridden in any of the inheriting classes. Methods are made final due to design reasons.

Since private methods are inaccessible, they are implicitly final in Java. So adding final specifier to a private method doesn t add any value. It may in-fact cause unnecessary confusion.

class Base {

private final void foo() {}

// The above method foo() is same as following. The keyword

// final is redundant in above declaration.

// private void foo() {}

For example, both program 1 and program 2 below produce same compiler error foo() has private access in Base .

// file name: Main.java

class Derived extends Base {

public void foo() {}

public class Main {

public static void main(String args[]) {

Base b = new Derived();

private void foo() {}

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.

Public methods in Java

The members, methods and classes that are declared public can be accessed from anywhere. This modifier doesn t put any restriction on the access. Lets take the same example that we have seen above but this time the method addTwoNumbers() has public modifier and class Test is able to access this method without even extending the Addition class. This is because public modifier has visibility everywhere.

Summary of the Modification Accessibility

Modifiers are keywords that you add to those definitions to change their meanings. Java language has a wide variety of modifiers, including the following

Java Access Modifiers

Non Access Modifiers

To use a modifier, you include its keyword in the definition of a class, method, or variable. The modifier precedes the rest of the statement, as in the following example.

public class className {

private boolean myFlag;

static final double weeks = 9.5;

protected static final int BOXWIDTH = 42;

public static void main(String[] arguments) {

// body of method

Access Control Modifiers

Java provides a number of access modifiers to set access levels for classes, variables, methods and constructors. The four access levels are

Visible to the package, the default. No modifiers are needed.

Visible to the class only (private).

Visible to the world (public).

Visible to the package and all subclasses (protected).

Non-Access Modifiers

Java provides a number of non-access modifiers to achieve many other functionality.

0The static modifier for creating class methods and variables.

The final modifier for finalizing the implementations of classes, methods, and variables.

The abstract modifier for creating abstract classes and methods.

The synchronized and volatile modifiers, which are used for threads.

Data structures

Public instance variables:

An instance variable is a variable/attribute/member that is associated with an instance. So if we have a Person class, and we have an instance of a Person called Bob, then things like Bob.age or Bob.haircolor would be instance variables. A public instance variable is just an instance variable that is public. That is, you are allowed to use the instance variable from outside the class.

Private instance variables:

The private (most restrictive) modifiers can be used for members but cannot be used for classes and Interfaces. Fields, methods or constructors declared private are strictly controlled, which means they cannot be accessed by anywhere outside the enclosing class.

Naming conventions:

Different Java programmers can have different styles and approaches to the way they program. By using standard Java naming conventions they make their code easier to read for themselves and for other programmers. Readability of Java code is important because it means less time is spent trying to figure out what the code does, leaving more time to fix or modify it. A naming convention is a rule to follow as we decide what to name our identifiers (e.g. class, package, variable, method, etc.).

Arrays (One & Two dimensional):

An array is a collection of variables that are of similar data types and are referred by a common name. A specific element in an array is accessed by a particular index of that array. A one-dimensional array is a list of variables with the same data type, whereas the two-Dimensional array is array of arrays having similar data types.

File structure:

If Point is defined as a public class, its source code must appear in a file named Point.java. Regardless of whether the classes are public or not, it is good programming practice to define only one per file and to give the file the same name as the class.

A loop statement permits us to execute an announcement or gat hering of statements numerous times and taking after is the general type of a loop statement in a large portion of the programming languages. Loops are gro uping of guideline that is consistently rehashed until a specific condition came to.

Conditional statements:

Java, like all other programming languages, is equipped with specific statements that allow us to check a condition and execute certain parts of code depending on whether the condition is true or false. Such statements are called conditional, and are a form of composite statement.

Case statements:

A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each case.

Logical operators:

If we assume Boolean variables A holds true and variable B holds false, then

&& is called Logical AND operator. If both the operands are non-zero, then the condition becomes true. For example (A && B) is false.

|| is called Logical OR Operator. If any of the two operands are non-zero, then the condition becomes true. For example (A || B) is true.

! (Logical not) Called Logical NOT Operator. Use to reverses the logical state of its operand. If a condition is true then Logical NOT operator will make false. For example !(A && B) is true.

Assignment statements:

Java programs store data values in variables. When a programmer creates a variable in a Java application, he declares the type and name of the variable, then assigns a value to it. The value of a variable can be altered at subsequent points in execution using further assignment operations. The assignment statement in Java involves using the assignment operator to set the value of a variable.

Input statements:

This is used to feed the data to user’s program and usually a keyboard is used as standard input stream and represented as System.in.

Output statements:

This is used to output the data produced by the user’s program and usually a computer screen is used for standard output stream and represented as System.out.

Constants and literals:

A constant in Java is used to map an exact and unchanging value to a variable name. A literal is a value that is expressed as itself. For example, the number 25 or the string “Hello World” are both literals.

Integer: It is a whole number with no fractional value that can be positive, negative, or zero.

Floating point:

These are numbers that have fractional parts (usually expressed with a decimal point).

Byte data type is an 8-bit signed two’s complement integer. The minimum value is -128 & maximum value is 127. Default value is 0. Byte data type is used to save space in large arrays, mainly in place of integers, since a byte is four times smaller than an integer.

Date ( ) constructor initializes the object with the current date and time.

Boolean is a java primitive type. It only accepts true or false (which are declared constants in java).

String is a sequence of characters, for e.g. Hello is a string of 5 characters. In java, string is an immutable object which means it is constant and can cannot be changed once it has been created.

Choice of data types

The noteworthy data is taking after the record of particular data which pointed in others way, and the data type showing to each number of ideal conditions for specific zones with component extent of execution.

Environment

Run time environment

The Java Runtime Environment (JRE), also known as Java Runtime, is part of the Java Development Kit (JDK), a set of programming tools for developing Java applications. It provides the minimum requirements for executing a Java application. It consists of the Java Virtual Machine (JVM), core classes, and supporting files.

Programming Syntax

Command rules

A program’s source code must have correct syntax in order to compile correctly and be made into a program or it will fail to compile and produce a “syntax error.”

Variable declaration

A variable is a container that holds values that are used in a Java program. To be able to use a variable it needs to be declared. Declaring variables is normally the first thing that happens in any program. Java is a specifically programming language. This implies each variable must have an data type connected with it. For instance, a variable could be declared to utilize one of the eight primitive data types: byte, short, int, long, float, double, char or Boolean. A decent similarity for a variable is to think about a container.

Code layout and indentation

Coding proposal for java incorporates the naming concentrates principally on inspecting issues of layout style code. Code design specifically space style is something of a heavenly war in programming system. The naming convention utilizing parts container and layout oversee classes of the java program. Despite the fact that, it bode well to cover the format director where it likewise say the particularly the objects are includes.

Code indentation is drawing nearer the issue when code layout structure of the code spoke to outwardly as precisely as could be allowed. In this manner, the structure code concentrate on area of block delimiters or opening or shutting the keyword either picked the best outwardly mirror the sensible structure.

Environmental Flexibility of Java

The design requirements of the Java programming language are driven by the nature of the computing environments in which software must be deployed.

The massive growth of the Internet and the World-Wide Web leads us to a completely new way of looking at development and distribution of software. To live in the world of electronic commerce and distribution, Java technology must enable the development of secure, high performance, and highlyrobust applications on multiple platforms in heterogeneous, distributed networks.

Simple, Object Oriented, and Familiar

Primary characteristics of the Java programming language include a simple language that can be programmed without extensive programmer training while being attuned to current software practices. The fundamental concepts of Java technology are grasped quickly; programmers can be productive from the very beginning.

The Java programming language is designed to be object oriented from the ground up. Object technology has finally found its way into the programming mainstream after a gestation period of thirty years. The needs of distributed, client-server based systems coincide with the encapsulated, message-passing paradigms of object-based software. To function within increasingly complex, network-based environments, programming systems must adopt object-oriented concepts. Java technology provides a clean and efficient object-based development platform.

Programmers using the Java programming language can access existing libraries of tested objects that provide functionality ranging from basic data types through I/O and network interfaces to graphical user interface toolkits. These libraries can be extended to provide new behavior.

Even though C++ was rejected as an implementation language, keeping the Java programming language looking like C++ as far as possible results in it being a familiar language, while removing the unnecessary complexities of C++. Having the Java programming language retain many of the object-oriented features and the “look and feel” of C++ means that programmers can migrate easily to the Java platform and be productive quickly.

Robust and Secure

The Java programming language is designed for creating highly reliable software. It provides extensive compile-time checking, followed by a second level of run-time checking. Language features guide programmers towards reliable programming habits.

The memory management model is extremely simple: objects are created with a new operator. There are no explicit programmer-defined pointer data types, no pointer arithmetic, and automatic garbage collection. This simple memory management model elimina tes entire classes of programming errors that bedevil C and C++ programmers. You can develop Java code with confidence that the system will find many errors quickly and that major problems won’t lay dormant until after your production code has shipped.

Java technology is designed to operate in distributed environments, which means that security is of paramount importance. With security features designed into the language and run-time system, Java technology lets you construct applications that can’t be invaded from outside. In the network environment, applications written in the Java programming language are secure from intrusion by unauthorized code attempting to get behind the scenes and create viruses or invade file systems.

High Performance

Performance is always a consideration. The Java platform achieves superior performance by adopting a scheme by which the interpreter can run at full speed without needing to check the run-time environment. The automatic garbage collector runs as a low-priority background thread, ensuring a high probability that memory is available when required, leading to better performance. Applications requiring large amounts of compute power can be designed such that compute-intensive sections can be rewritten in native machine code as required and interfaced with the Java platform. In general, users perceive that interactive applications respond quickly even though they’re interpreted.

Interpreted, Threaded, and Dynamic

The Java interpreter can execute Java bytecodes directly on any machine to which the interpreter and run-time system have been ported. In an interpreted platform such as Java technology-based system, the link phase of a program is simple, incremental, and lightweight. You benefit from much faster development cycles–prototyping, experimentation, and rapid development are the normal case, versus the traditional heavyweight compile, link, and test cycles.

Modern network-based applications, such as the HotJava Browser for the World Wide Web, typically need to do several things at the same time. A user working with HotJava Browser can run several animations concurrently while downloading an image and scrolling the page. Java technology’s multithreading capability provides the means to build applications with many concurrent threads of activity. Multithreading thus results in a high degree of interactivity for the end user.

The Java platform supports multithreading at the language level with the addition of sophisticated synchronization primitives: the language library provides the Thread class, and the run-time system provides monitor and condition lock primitives. At the library level, moreover, Java technology’s high-level system libraries have been written to be thread safe: the functionality provided by the libraries is available without conflict to multiple concurrent threads of execution.

While the Java Compiler is strict in its compile-time static checking, the language and run-time system are dynamic in their linking stages. Classes are linked only as needed. New code modules can be linked in on demand from a variety of sources, even from sources across a network. In the case of the Hot Java Browser and similar applications, interactive executable code can be loaded from anywhere, which enables transparent updating of applications. The result is on-line services that constantly evolve; they can remain innovative and fresh, draw more customers, and spur the growth of electronic commerce on the Internet.

My finding for the client

In java programming, it has more applicability than any other language. It can be used in computer embedded system. We find that customers are satisfied with the programmed designed by java language. Designing a program through java language is helpful for everyone. It can reduce time. It is not easy language. We need to be very expert to writing a program in java language. Though it is high level language but it has many things to be an elite language. It has many variable and constant to write a language. We need to be industrious to be good at java language. We find that customers are taking java oriented software undoubtedly.

In my above discussion I have tried to show vivid description of Java programming. I wrote principle of Java programming reason for choosing Java programming, the method of Java, data structure of Java. And through the example and definition I show the various way of Java programing, some frequently asked Java question. In my assigned work I give definition, idea, example, figure and many others way to make my understanding clear. Therefore, it is worth mentioning to say that Java programming is one of the best programming language in computer world. Due lack of time, I was not able to say everything about Java. But, I hope, studying the report, everybody will have enough knowledge of Java. And it is will be a good project to keep record.

Bibliography

...(download the rest of the essay above)

About this essay:

If you use part of this page in your own work, you need to provide a citation, as follows:

Essay Sauce, Principles of Java programming . Available from:<https://www.essaysauce.com/information-technology-essays/principles-of-java-programming/> [Accessed 29-03-24].

These Information technology essays have been submitted to us by students in order to help you with your studies.

* This essay may have been previously published on Essay.uk.com at an earlier date.

Essay Categories:

• Accounting essays
• Architecture essays
• Business essays
• Computer science essays
• Criminology essays
• Economics essays
• Education essays
• Engineering essays
• English language essays
• Environmental studies essays
• Essay examples
• Finance essays
• Geography essays
• Health essays
• History essays
• Hospitality and tourism essays
• Human rights essays
• Information technology essays
• International relations
• Leadership essays
• Linguistics essays
• Literature essays
• Management essays
• Marketing essays
• Mathematics essays
• Media essays
• Medicine essays
• Military essays
• Miscellaneous essays
• Music Essays
• Nursing essays
• Philosophy essays
• Photography and arts essays
• Politics essays
• Project management essays
• Psychology essays
• Religious studies and theology essays
• Sample essays
• Science essays
• Social work essays
• Sociology essays
• Sports essays
• Types of essay
• Zoology essays

Java Programming – All About Java

• Emily Scott

Meaning of Java

Java can be described as a language of computer programming. It is a computing arch announced and declared in 1995 by Sun Microsystems. This programming language was designed to sense the simpler demeanour of C++. It administers a stock-adapting model of programming. Java can constitute outright applications serving single computers, networks, and servers.

Introduction to Java Programming

Java programming allows programmers to pen down the computer information and groundings by applying English commands rather than numeric forms. The language of java programming is considered a hovering level as humans can read and optimise it. Java can also be implemented to frame short and precise modules of applications. Some numerous websites and applications will be unable to facilitate without java installation. Java contains a set of rules that persuade the guidelines for writing known as syntax. The usage of Java can be seen far and wide in technologies like laptops, computers, mobile, gaming etc.

Key principles of Java

• Objected Oriented – In java programming, everything is a countenance and, based on object illustration, can be extended readily.
• Uncomplicated  – Java is devised to be smooth to learn and adapt.
• Protected and Secured – Java contains protected and shielded features, making it impossible for viruses and unauthorized access to enter the program.
• Easily Conveyable – Java is said to be architecture-inert, making it very convenient to a port.
• Multithreaded  – It is conceivable to engross programs that can exercise numerous tasks together. It helps the developers to construct smooth applications.
• Easy to Interpret – The development proceeding is swift and logical as the joining is cumulative and light operation.
• Dynamic – Java is more compelling than C or C++. Java listings can carry a considerable amount of information that can be considered to double-check and resolve the admittance of objects.

List of Java Programs

Listed below are java programs that help to learn the  programming language of Java:

• Hello World
• For Loop While Loop
• Enhanced For Loop
• Java Exception Handling Tutorial
• Largest Of Three Integers
• Print Alphabets
• Print Multiplication Table
• Find Odd/Even
• Java Method
• Static Method
• Static Block
• Linear Search
• Binary Search
• Transpose Matrix
• Bubble Sort
• Open Notepad

Why is Java Platform Independent?

Java is known to be platform-independent as it is divergent from other programming languages like C and C++. A platform is the aura of software and hardware within which a program expands and runs. Programming languages like C and C++ are assembled into platform-limited machines. On the other hand, Java is a write-a-single-time and scamper-any programming language. Java administers software-based platforms.

There are mainly two types of platforms on which a program runs which are:

• Software Based Platforms
• Hardware Based Platforms

The java platform varies from many other media in that it is a software-oriented platform that scampers on the crowning of alternate hardware-based platforms.

Java programming consists of two principal integrals:

• Runtime Environment
• Application Programming Interface

Code of Java can be run on various platforms, for example, Linux , Sun Solaris, Windows, Mac, OS etc. The Java code is composed by the compiler and reformed into bytecode. This type of bytecode is authentically unconstrained of platform codes as it can be carried on multiple platforms.

Why is Java Secure?

Java is fetching over $ 100 billion of business every year. There is no curbing that there is a large-scale and pervasive usage of Java applications, and the most considered reason is security assurance. Java has numerous outstanding features that cannot be overlooked, and other programming languages lack these features.

Security Model of Java – Security and surveillance is undoubtedly significant facet of java programming . It is considered to be the most trustful platform for application developers. Security tends to be condemned when the software is initialized beyond all networks. Java effortlessly subdues the security issues related to applications and operations. Java's security model is commended for shielding and harbouring users from unauthorized and untrusted network resources.

Java VS Other Programming Languages

Java is one of the most famous and leading programming languages, and it is generally taken into account to contrive and form computer applications, web portals, etc.

The contrast between Java and C++

Java primarily originated from C++. It was chiefly derived to stretch the C programming language and for system programming. Comparatively, Java is more gradual than  C++ programming language . Standard libraries of C++ are simple and potent, whereas the libraries of Java are compelling cross-platform.

The contrast between Ruby Programming Language and Java

Ruby and Java programming languages are object-oriented—sites with colossal traffic use Java rather than  Ruby . The machine codes of Java exercise much faster than that of interpreted code of Ruby.

Python VS Java

Python is the complete supporting object-oriented programming form, while Java is not a fully object-oriented language. Python associates system peripherals and Java is defined as a ground-level pursuit language. Java programs are more extended than python programs.

Advantages of using Java

Java has attained prominent popularity from the time it was introduced. Java composes compelling favours over the rest of the programming languages. Java is simple to learn and access. Java complements almost all kinds of applications. Java entitles smooth portability as compared to other programming languages. Java has emerged as a language of significant choice in furnishing solutions and answers to the worldwide internet.

Handling computer programs and language can be challenging at times. Java operations might prove complex and stressful for some students. If you are also struggling with your pending Java assignments, connect to EssayCorp for instant help. We assure you excellent assistance in java assignments at a very nominal price. Our subject matter experts will provide you with peerless work that will give you good grades.

Book Your Assignment

For your response..

We will revert back soon!! Your information is 100% safe with us.

Recent Posts

Study Abroad: Preparation, Expectations, and Tips

Step-by-step guide to writing your first college essay, time management tips for busy college students, what is a descriptive essay, harvard style citation and referencing: overview.

• Academic (29)
• Accounting (25)
• Assignments (82)
• Biochemistry (1)
• Business (8)
• Business Law (2)
• Case Study (4)
• Celebration (22)
• Communication (1)
• Computer Network (2)
• Computer Science (18)
• Coursework Help (1)
• Cybersecurity (1)
• Dissertation (12)
• Economics (18)
• Engineering (21)
• English (6)
• Essay Writing (50)
• Events (34)
• Finance (11)
• Holmes Institute (1)
• Homework (6)
• International Students (2)
• Leadership (1)
• Lifestyle (8)
• Management (39)
• Marketing (13)
• Mass Communication (2)
• Mathematics (9)
• Medical (6)
• Miscellaneous (21)
• News and Information (23)
• Nursing (11)
• Perdisco (2)
• Programming (18)
• Proofreading Services (1)
• Science (18)
• Social Science (4)
• Statistics (3)
• Study Abroad (4)
• Taxation (2)

• JPassion Courses Start here
• Free Courses
• Instructor- Sang Shin

Data Analysis Made Simple: Leveraging Java Programming for In-depth Essay Research

Introduction

In the computerized age, the immense measure of information accessible online can be a situation with two sides for researchers and essayists. While the internet offers a gold mine of data, it tends to be challenging to filter through the tremendous ocean of information to find significant, dependable hotspots for in-depth essay research. This is where Java programming, mainly about Java web development , becomes an integral factor. In this article, we will investigate how leveraging Java programming can improve data analysis for essay research, providing you with the apparatuses to uncover essential insights and upgrade the nature of your work.

Java Programming: A Flexible Device

Java is a flexible, significant-level programming language known for its transportability, security, and strength. It has tracked down applications in many domains, from web and versatile application development to data analysis. Leveraging Java in essay research permits you to tackle its ability to gather, process, and dissect data proficiently.

Here are the ways Java can be a distinct advantage in your essay research:

1. Web Scraping

Java's libraries and structures, for example, JSoup, make web scraping a breeze. With web scraping, you can separate data from websites, gather research materials, and incorporate databases of articles, reports, and scholarly papers.

2. Data Extraction

Whenever you've assembled your research materials, Java programming can assist you with extracting pertinent data. This can include removing text, tables, pictures, and more from web pages, PDFs, or other record formats.

3. Data Transformation

Java is excellent at data transformation. You can control and reformat data to accommodate your research needs, whether that involves cleaning up text, structuring data in a specific way, or converting data starting with one format and then onto the next.

4. Database

Java gives various libraries and systems to database the executives. You can store, recover, and oversee data, ensuring that your research materials are coordinated and effectively open.

5. Data Analysis

Java offers a wide cluster of measurable and logical libraries, making it a fantastic device for in-depth data analysis. Whether examining patterns, conducting feeling studies, or performing text mining, Java programming works with cutting-edge data analysis procedures.

Java Web Development for Data Assortment

Java web development is especially significant for data assortment. This cycle involves creating web-based apparatuses, applications, or content that interact with websites to assemble information. The gathered data can be utilized for various research purposes, from content analysis to statistical surveying. Java web development offers the following benefits:

1. Robotization

With Java web development, you can mechanize the data assortment process. Instead of physically visiting websites and copying data, your Java application can do it for you, saving time and effort.

2. Ongoing Data

Java web applications can be intended to gather constant data. This is important while researching subjects that expect authorized information, for example, news stories, stock costs, or web-based entertainment patterns.

3. Adaptability

Java web development permits you to scale your data assortment efforts. Whether you're collecting data from a couple of sources or hundreds, Java can deal with the undertaking proficiently.

4. Data Approval

Java applications can approve and clean the data as it's gathered. This guarantees that the data you assemble is precise and solid, reducing the gamble of blunders in your research.

5. Integration

Java web development can be integrated with databases, examination instruments, and other programming to streamline the research cycle. This implies the data you gather can be flawlessly utilized in your analysis.

Java Programming in Activity

We should take a gander at how Java programming can be applied to certifiable essay research:

You're entrusted with writing an essay on environmental change and need state-of-the-art data from legitimate sources. You can make a Java web application that scratches data from environment-related websites, gathers insights, and incorporates late research findings into a database.

2. Feeling Analysis

Your essay centers around the effect of virtual entertainment on general opinion. Java's text analysis libraries can be utilized to assemble and break down online entertainment content. Feeling analysis instruments can determine public opinion toward specific points or occasions.

3. Statistical surveying

If your essay investigates market patterns, Java web development can robotize pricing information, client audits, and item data from web-based business websites. You can utilize this data to investigate market elements and buyer conduct.

4. Content Analysis

To examine content from different online sources, you can make a Java program that scratches articles, blog entries, and research papers on your research subject. Java web development permits you to gather, order, and break down text-based content productively.

5. Data Representation

Java offers strong data perception libraries, like JFreeChart and JUNG. You can utilize these devices to make outlines, diagrams, and visual portrayals of your research findings, enhancing the transparency and effect of your essay.

Java web development enables you to robotize data assortment, lead in-depth analysis, and envision your research findings, all of which add to additional careful and all-around informed essays.

Java programming, especially concerning Java web development, is an essential resource for essay research. It improves the course of data assortment, extraction, transformation, and analysis. By harnessing Java's capacities, you can direct extensive and in-depth study on many points, from environmental change and web-based entertainment influence to advertise patterns and content analysis.

Whether gathering data from the web, performing feeling analysis, or visualizing your findings, Java programming offers the adaptability and ability to improve your research interaction and the nature of your essays. Embrace Java's capacities and take your research to a higher level, unlocking a universe of significant insights and information for your scholar or expert undertakings.

• Courses Start here
• Terms & conditions
• DMCA CopyRights

java programming Recently Published Documents

Total documents.

• Latest Documents
• Most Cited Documents
• Contributed Authors
• Related Sources
• Related Keywords

Developing New Software for Functional Food Production

Introduction. Statistical methods of data processing and IT technologies make it possible to introduce new modern methods of hazard and risk analysis in food industry. The research objective was to develop new software that would link together various risk-related production data. Study objects and methods. The research featured food production company LLC Yug (Biysk, Russia) that specializes in functional products and various ready-made software automation solutions. The study also involved statistical methods, methods of observation, collection of primary information, sequential top-down development of algorithms, and the Java programming language. Results and discussion. Food producers have a registration procedure for inconsistencies and violations of permissible limits at critical control points. The authors developed a new software program that allows production line operators to enter data on downtime and other violations of the production process. The program makes it possible for managers to receive up-to-date reports on various criteria, identify violations, and select appropriate corrective actions. This ready-made solution automates the process of accounting and hazard analysis. The program was tested at LLC Yug with the focus on the time that operators and managers needed to register the problem, analyze the data, develop corrective or preventive measures, and apply them. Conclusion. The new software proved to be less time-consuming than standard procedures applied in food industry and made it possible to save the time that operators and managers spent on decision making and reporting.

Ascertaining Important Features of the JAPROSIM Simulation Library

This paper describes important features of JAPROSIM, a free and open source simulation library implemented in Java programming language. It provides a framework for building discrete event simulation models. The process interaction world view adopted by JAPROSIM is discussed. We present the architecture and major components of the simulation library. In order to ascertain important features of JAPROSIM, examples are given. Further motivations are discussed and suggestions for improving our work are given.

The comparative analysis of Java frameworks: Spring Boot, Micronaut and Quarkus

The aim of the work is a comparative analysis of three frameworks designed for building web applications for the Java programming language: Spring Boot 2.4.4, Micronaut 2.5.4 and Quarkus 1.13.4.Final. Test applications were prepared, equipped with the same functionality as used in the experiment consisting in measuring the server response times to a POST request – performing the data entry into the database. For each test application, the scenario aimed at measuring the time of handling requests under various load conditions was repeated five times. During each repetition of the scenario, the load which was the average number of requests sent per second by virtual users was increased. In parallel with performance tests, the reliability of the test applications was measured. Reliability was defined as the percentage of requests sent to the server that ended in a failure. The comparative analysis also took into consideration the volume of the code of the test applications based on the selected frameworks. The performed analyses showed that in terms of all the criteria considered in this work Micronaut proved to be the best framework.

Comparative analysis of connection performance with databases via JDBC interface and ORM programming frameworks

The research subject of this paper was the comparative analysis of efficiency of connections with databases using different communication methods based on Java programming language. The tools investigated included JDBC drivers and Object-relational mapping (ORM) frameworks. A survey based on 8 different criteria was conducted to determine the most effective method and tool for working with relational databases when developing Java applications. The weights of the criteria were determined through a survey of Java programmers and computer science students.

Performance Evaluation of Java Programming Strategies

Java is one of the most demanding programming languages nowadays and it is used for developing a wide range of software applications including desktop, mobile, embedded, and web applications. Writing efficient Java codes for those various types of applications (which some are critical and time-sensitive) is crucial and recommended best practices that every Java developer should consider. To date, there is a lack of in-depth experimental studies in the literature that evaluate the impact of writing efficient Java programming strategies on the performance of desktop applications in terms of runtime. Thus, this paper aims to perform a variety of experimental tests that have been carefully chosen and implemented to evaluate the most important aspects of desktop efficient Java programming in terms of runtime. The results of this study show that significant performance improvements can be achieved by applying different programming strategies.

An improved Framework for Biometric Database’s privacy

Security and privacy are huge challenges in biometric systems. Biometrics are sensitive data that should be protected from any attacker and especially attackers targeting the confidentiality and integrity of biometric data. In this paper an extensive review of different physiological biometric techniques is provided. A comparative analysis of the various sus mentioned biometrics, including characteristics and properties is conducted. Qualitative and quantitative evaluation of the most relevant physiological biometrics is achieved. Furthermore, we propose a new framework for biometric database privacy. Our approach is based on the use of the promising fully homomorphic encryption technology. As a proof of concept, we establish an initial implementation of our security module using JAVA programming language.

Research on the Transformation of Teaching and Research Form of Professional Teachers in Blended Learning at Colleges and Universities – Taking the Java Programming Course as an Example

In view of the current situation that offline teaching is the main mode of teaching Java Programming in higher vocational schools, this paper introduces the online and offline hybrid teaching method and expounds it from the aspects of blended learning design, teaching organization, and implementation. At the same time, combined with the characteristics of blended learning, this paper proposes that under the new mode, teachers should actively change the form of teaching and research, the teaching mode, and the role of teachers, take students as the center, and build an independent and effective classroom.

LSB-based Audio Steganographical Framework for Securing Data in Transit

The benefits that individuals and organizations derive from the digital era comes with its own challenges. Globally, data has become one of the greatest assets for decision making and operational improvements among businesses, government agencies and even individuals. Data on its own and at its source does not make so much contribution to business processes. Data is transmitted from one location to another towards attainment of its goal as a critical resource in decision making. However, data including sensitive or confidential ones are transmitted via public channels such as the Internet. The data so transmitted via the Internet is vulnerable to interception and unauthorized manipulation. This demands that data in transit is protected from the prying eyes of the malicious internet users. One of such strategies for transmitting data via public channels such as the Internet without attracting attention from intruders is steganography. In this paper, the least significant bit algorithm was used with an audio file for hiding data in transit. The algorithm used in this research proves to be one of the simplest ways of securing data using audio steganography. The method employed the LSB technique by using audio files as the stego object for the final implementation in the Java programming language. The experimental results proved to be one of the best methods of implementing steganography. The accuracy of the stego objects shows high quality, and similarity scores with an improved processing time.  

Effective Online Tools for Teaching Java Programming Course on an Online Platform

Perancangan aplikasi penjualan berbasis android sebagai media pemesanan pada distro online.

Abstrak: Di zaman sekarang ini perusahaan dan bisnis startup berkembang sangat cepat seiring dengan perkembangan zaman, dan dengan perkembangan zaman itu juga, itu hampir setiap masyarakat di era sekarang memiliki perangkat handphone dan sudah dianggap salah satu bagian yang paling penting dalam menjalani kehidupan sehari-hari. Dan sekarang ada banyak juga jenis perusahaan atau bisnis startup yang dapat kita temui, dan salah satu yang paling sering ditemui merupakan jenis startup yang ditargetkan untuk masyarakat pengguna handphone, dan dalam pemasarannya perusahaan dan bisnis startup ini membuat suatu media untuk memudahkan masyarakat dalam mengakses konten yang mereka jual, yaitu dalam bentuk suatu aplikasi berbasis sistem android. Ditambah lagi dengan adanya wabah Covid-19 dan juga kebijakan-kebijakan pemerintah yang membatasi pergerakan masyarakat, aplikasi startup ini sangat membantu dapat menjadi solusi bagi para pengusaha untuk memenuhi penjualan mereka ditengah masa pandemi, serta menyebarluaskan aplikasi Distro supaya lebih dikenal luas oleh masyarakat sehingga berminat untuk menggunakan aplikasi Distro. Beberapa perusahaan dan bisnis kecil yang masih berkembang atau biasa disebut usaha mikro ini sudah mulai mencoba cara- cara baru dalam memasarkan apa yang mereka jual dalam pandemi yang masih terjadi saat ini dan salah satunya membuat aplikasi berbasis sistem android. selain memudahkan penjual memasarkan yang mereka jual, masyarakat yang berperan sebagai pembeli pun dapat dengan mudah mengakses informasi dan melakukan transaksi jual-beli melalui aplikasi tersebut tanpa harus datang ke toko fisik secara langsung. Dan dengan dibuatnya aplikasi ini diharapkan dapat menjadi sebagai contoh untuk bagaiman usaha mikro dalam membuat aplikasi untuk bisnis yang mereka jalani. Berdasarkan uraian di atas, penulis mencoba membuat sebuah rancangan Aplikasi Distro Online Berbasis Android dan sistem Aplikasi Android ini dikembangkan dengan menggunakan metode pengembangan Waterfall, dengan bahasa pemrograman java dan database yang digunakan adalah cPanel.   Kata kunci: android, aplikasi, startup, usaha mikro   Abstract: Startup companies and businesses are growing very quickly along with the times, and with the development of this era, almost every society in this era has a mobile phone and is considered one of the most important parts of everyday life. And now there’s all types of startup companies or businesses that we can find, and one of the most frequently encountered is the type of startup that is targeted at the mobile phone users, and to market what these startup companies and businesses sell, a media platform is created to make it easier for people to access the content that they are provided, namely by forming an app based on the android system. Coupled with the COVID-19 outbreak and also government policies that restrict people's movement, This startup application is very helpful, it can be a solution for entrepreneurs to meet their sales in the midst of a pandemic, as well as disseminate the Distro application so that it is more widely known by the public so that they are interested in using the Distro application. Some companies and small businesses that are still in development or commonly called micro-enterprises have started trying new ways to market what they provided in the current pandemic and one of them is by making applications based on the Android system. In addition to making it easier for sellers to market what they sell, customers can easily access information and made transactions through the application without having to come to a the store directly. And with the creation of this application, it is hoped that it can serve as an example for how micro-enterprises make applications for the businesses they do. Based on the description above, the author tried to create a design of the Android-Based Online Distro Application and the Android Application system was developed using waterfall development methods, with the java programming language and database used is cPanel.   Keywords: android, application, micro business, startup

Export Citation Format

Share document.

We use cookies to enhance our website for you. Proceed if you agree to this policy or learn more about it.

• Essay Database >
• Essays Samples >
• Essay Types >
• College Essay Example

Java College Essays Samples For Students

33 samples of this type

If you're seeking a viable way to streamline writing a College Essay about Java, WowEssays.com paper writing service just might be able to help you out.

For starters, you should skim our huge collection of free samples that cover most various Java College Essay topics and showcase the best academic writing practices. Once you feel that you've determined the key principles of content presentation and drawn actionable insights from these expertly written College Essay samples, composing your own academic work should go much easier.

However, you might still find yourself in a situation when even using top-notch Java College Essays doesn't allow you get the job accomplished on time. In that case, you can get in touch with our writers and ask them to craft a unique Java paper according to your custom specifications. Buy college research paper or essay now!

Good Essay On Technology Management

Good essay on computer science in the health care industry, essay on java lounge, situation analysis.

Don't waste your time searching for a sample.

Get your essay done by professional writers!

Just from $10/page

Programming languages essay sample

Question 1 Similarities between Java and C++ Both Java and C++ are known to support method overloading in a similar manner. Java and C++ also lack support of direct higher order functions; instead they provide a way of imitating their behavior. Another notable similarity between java and C++ is that they both provide third level of access control ‘private’ and they both offer ‘static’ members. Furthermore, both Java and C++ are not purely object-oriented, they are hybrid since they fail to satisfy all the specifics of object-oriented languages (Kedar 2008).

Differences between Java and C++

A comparison of c# and java fundamentals essay sample, comparing and contrasting essay examples.

The advancement of technology and globalization people have innovated new applications for different mobile devices. Wireless Application Protocol/ Wireless Markup Language (WAP/WML), and Java 2 Platform, Micro Edition (J2ME) are two applications that work with mobile devices to architect and design information sent to a wireless mobile device (Orubeondo, 2000). The two architects have various comparisons and contracts as discussed below.

Comparisons

Good boolean logic essay example, java programming {type) to use as a writing model.

Instance variables are those variables that are specific to each class while class variables are those variables that are common among a class. In other words, instance methods or variables are those methods or variables that are specific to each object or instance of the class. On the other hand, class variables or methods are those methods or variables that represent class-wide situation (Horstmann & Cornell, 2002). For example the class Person, instance variables may include age and name while class variables may include species.

The super keyword

Sample essay on aloha java, algorithms and programming essay, algorithms and programming, free essay on network security, essay on smart phone app development, japanese and dutch in the dutch east indies essays examples, hospitality marketing: a sample essay for inspiration & mimicking, introduction, free mukhsin by yasmin ahmad essay example, essay on trojan virus, trojan virus, hive essay template for faster writing, discussion question, learn to craft essays on possible essay questions with this example, free ethics and tech copyright law essay sample, political essay sample, good leadership essay example, schultz’s love is a feeder, and compassion a breeder., the starbucks tragedy: case study essay sample, starbucks tragedy: a case study, public, hidden and private narratives {type) to use as a writing model, letter to candidate essay examples.

Interview Assignment

RE: DECISION FOR HIRING

Good essay about career and education plan in computer science, career plan, cross-cultural music comparison essay, indian music, free essay about access control models, breakup of the indo-australian tectonic plate essays examples.

Introduction 3 Geological Environment and Processes Responsible 4 Geological and Topographical Features of the Plate Margin 6 Human and Environmental Impacts 8 Discussion 10 Conclusions 11

Good Example Of Essay On Website Optimization Paper

A website is a technological segment where companies, non-governmental organizations (NGO) post their up to date information. This information includes its objective, mission, current trends and contact information about the enterprise. It incorporates a set of related web pages that are serving from a single domain. A website is only accessible when there is active internet or through a private Local Area Network (LAN).For website to be fully accessed a uniquely designed Internet address is coded into a Uniform Resource Locater (URL)

Lockheed Martin Company

Good essay about singleton pattern, application patterns, computer and networking essay example, example of objects instances essay, objects (instances).

Objects are the building blocks of the Java programming language being an object-oriented language. An object is just like real-world objects and their description and properties are described in the object class. An object can be composed of several other objects. The limitations of the properties or the description of an object is based on its class descriptions, its methods and properties set.

Creating A Cross Platform Mobile Development Framework Essay Examples

Executive summary.

Password recovery email has been sent to [email protected]

Use your new password to log in

You are not register!

By clicking Register, you agree to our Terms of Service and that you have read our Privacy Policy .

Now you can download documents directly to your device!

Check your email! An email with your password has already been sent to you! Now you can download documents directly to your device.

or Use the QR code to Save this Paper to Your Phone

The sample is NOT original!

Short on a deadline?

Don't waste time. Get help with 11% off using code - GETWOWED

No, thanks! I'm fine with missing my deadline