computer science programming with a purpose coursera assignment answers

Coursera - Computer Science: Programming With A Purpose

Week 1: hello, world - integers and booleans.

Jul 1, 2020

Write a program RightTriangle that takes three integer command-line arguments and determines whether they constitute the side lengths of some right triangle.

The following two conditions are necessary and sufficient:

• Each integer must be positive.
• The sum of the squares of two of the integers must equal the square of the third integer.

Note: the above description is copied from Coursera and converted to markdown for convenience

Link To: Java Source Code

Computer Science: Programming with a Purpose

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Computer Science Programming with a Purpose at Princeton University, Princeton

Learn about the fundamental concepts in programming through this online certification course by Coursera.

Quick Facts

Course overview.

The Computer Science: Programming with a Purpose Certification Course is a 100% online course that introduces learners to the basics of programming along with its core concepts. The course is available in a flexible mode through the Coursera learning platform. The course contents will be taught by the computer science professors at Princeton University.

The Computer Science: Programming with a Purpose Training will be provided via videos, academic reading materials followed by practice exercises for each module. The Computer Science: Programming with a Purpose Certification by Coursera and Leiden University aims at equipping learners with the skills and knowledge in computer programming .

The Highlights

• Free course
• Flexible deadlines
• 100% online
• 88 study hours
• Video lectures
• Practice exercises
• Academic readings
• Graded assignments 
• Peer feedback
• English medium
• Financial aid
• Subtitles in English, French, Portuguese (European), German, Russian, Spanish

Programme Offerings

Courses and certificate fees.

There is no Computer Science: Programming with a Purpose Certification Fees. All course materials can be accessed for free and there will be no course certificate available.

What you will learn

After completing the Computer Science: Programming with a Purpose Certification Classes, you will gain insights into the following topics:

• Basic programming elements
• Variables and conditionals
• Loops, arrays, and I/O
• Key concepts of recursion
• Modular programming
• Introduction to object-oriented programming
• Java programming language
• Computational problem solving 

Who it is for

The course is apt for anyone with an interest in computer programming and  programming languages.

Admission Details

Follow the given steps to enroll in the Computer Science: Programming with a Purpose Online Course:

Step 1: Click on the URL given below -

https://www.coursera.org/learn/cs-programming-java

Step 2: Click on the “Enroll for Free” option and choose the desired option.

Step 3: Fill in the required details and complete the process.

The Syllabus

• Why programming?
• Program development
• Built-in data types
• Type conversion
• Supplements for Lecture 1
• Optional Enrichment on Basic Programming Concepts

Practice Exercise

Basic Programming Concepts

• Conditionals: the if statement
• Loops: the while statement
• An alternative: the for loop
• Supplements for Lecture 2
• Optional Enrichment on Conditionals and Loops

Conditionals and Loops

• Basic concepts
• Typical array-processing code
• Two-dimensional arrays
• Supplements for Lecture 3
• Optional Enrichment on Arrays
• Standard input and output
• Standard drawing
• Fractal drawings
• Supplements for Lecture 4
• Optional Enrichment on Input and Output

Input and Output

• Case study: Digital audio
• Application: Gaussian distribution
• Modular programming and libraries
• Supplements for Lecture 5
• Optional Enrichment on Functions and Libraries

Functions and Libraries

• Foundations
• A classic example
• Recursive graphics
• Avoiding exponential waste
• Dynamic programming
• Supplements for Lecture 6
• Optional Enrichment on Recursion
• The challenge
• Empirical analysis
• Mathematical models
• Doubling method
• Familiar examples
• Supplements for Lecture 7
• Optional Enrichment on Performance
• Performance
• Image processing
• String processing
• Supplements for Lecture 8
• Optional Enrichment on Abstract Data Types
• Abstract Data Types
• Point charges
• Turtle graphics
• Complex numbers
• Supplements for Lecture 9
• Optional Enrichment on Creating Data Types

Creating Data Types

• Popular languages
• Java in context
• Object-oriented programming
• Type checking
• Functional programming

Supplements for Lecture 10

Programming Languages

Instructors

Princeton university, princeton frequently asked questions (faq's).

The course requires approximately 88 study hours for completion.

No, the Computer Science: Programming with a Purpose Online Course does not provide placement opportunities.

Yes, the course is offered in 100% online mode.

Yes, the Computer Science: Programming with a Purpose Course provides certification to learners.

Yes, there is an option to attend the course free of cost wherein you can get access to course materials.

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Help Articles

Solve problems with programming assignments, learner help center dec 5, 2022 • knowledge, article details.

If you're having problems with a programming assignment, check for your issue below.

If your problem is with a different kind of assignment, or you don't see your issue here, check our assignment troubleshooting page.

Can't submit programming assignment

If you're having trouble submitting a programming assignment, try the following steps:

• Make sure you saved your files in the correct format. To change the format, re-save your files.
• Decrease the size of the files, if possible.
• Clear your browser's cookies and cache.
• Making sure any ad-blocking software is turned off on your browser or network.
• Ask your peers for help by posting in the course discussion forums. Many programming assignment issues have very specific requirements, so people in the same course will be able to help you more than Coursera's support team.

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If the assignment uses custom grading, it will take up to an hour to get your grades back.

If you've waited longer than an hour and still don't have a grade:

• Check the assignment instructions and make sure you have saved your files in the right format.
• Resubmit the assignment.

Understanding your grade

Because many programming assignment graders use complex logic that the instructor creates, the Coursera support team can’t explain or change programming assignment grades.

To understand your grade on a programming assignment, review the assignment instructions and any feedback you got.

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Check your Grades tab to confirm that you've successfully completed the assignment.

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Computer Science: Programming with a Purpose

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Description

The basis for education in the last millennium was “reading, writing, and arithmetic;” now it is reading, writing, and computing. Learning to program is an essential part of the education of every student, not just in the sciences and engineering, but in the arts, social sciences, and humanities, as well. Beyond direct applications, it is the first step in understanding the nature of computer science’s undeniable impact on the modern world. This course covers the first half of our book Computer Science: An Interdisciplinary Approach (the second half is covered in our Coursera course Computer Science: Algorithms, Theory, and Machines). Our intent is to teach programming to those who need or want to learn it, in a scientific context. Read more.

This resource is offered by an affiliate partner. If you pay for training, we may earn a commission to support this site.

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Introduction to Computer Programming

This course is part of Introduction to Computer Science and Programming Specialization

Taught in English

Some content may not be translated

Instructors: Dr Edward Anstead +1 more

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There are 3 modules in this course

This MOOC provides you with the foundational skill set required to write computer programs. If you are interested in learning how to write interactive, graphical programs from an introductory level in a real programming language, this is the course for you. You will begin by learning the basics of editing and running programs. Then you will learn how to create 2D graphics using shapes and coordinates. Finally, you will learn how to create interactive graphics that you can control with the mouse. You will even solve a set of interactive puzzles using your coding skills in the Sleuth game which has been created especially for this course. The course uses the Javascript language and the p5.js library.

Your development environment

In this topic you will learn about three key concepts: • The toolkit we will use to develop programs.• Drawing using simple shapes and 2D coordinates.• The process and experience of writing code.

What's included

8 videos 7 readings 2 quizzes 1 programming assignment 4 discussion prompts

8 videos • Total 43 minutes

• Welcome to the course and about us • 1 minute • Preview module
• About you: Growth mindset • 2 minutes
• What is programming ? What is p5.js • 4 minutes
• Running your first program with Brackets • 6 minutes
• Learn by hacking • 4 minutes
• 2D coordinate systems • 7 minutes
• Code philosophy: What it feels like to code • 3 minutes
• Getting started with Sleuth • 11 minutes

7 readings • Total 240 minutes

• Some information before you begin…. • 10 minutes
• P5.js Resources • 10 minutes
• How to download and install Brackets • 10 minutes
• Programing exercise 1: Hack the Robot • 10 minutes
• Programing exercise 2: Code from scratch: De Stijl • 180 minutes
• Sleuth Case by Case • 10 minutes
• Transcripts for the videos of Sleuth cases 201, 202, 301, 302, 303 • 10 minutes

2 quizzes • Total 60 minutes

• Getting started with P5.js • 30 minutes
• 2D coordinate system • 30 minutes

1 programming assignment • Total 180 minutes

• Sleuth assessment • 180 minutes

4 discussion prompts • Total 40 minutes

• Running your first program with Brackets • 10 minutes
• Hack the Robot • 10 minutes
• De Stijl, share your modern master • 10 minutes
• Code philosophy • 10 minutes

Drawing in 2D

In this topic you will learn about three key concepts: • Set of 2D drawing functions in p5.js • Colour representation and styles • Debugging with the console

7 videos 4 readings 4 quizzes 3 discussion prompts

7 videos • Total 43 minutes

• RGB colours • 8 minutes • Preview module
• fill, stroke, noFill • 7 minutes
• setup, draw and Programme Flow • 3 minutes
• Shapes: ellipse, rectangle, line, triangle, point • 6 minutes
• How to access and use the console to view errors • 3 minutes
• Debugging syntax errors • 8 minutes
• Code Philosophy: Asking for help • 5 minutes

4 readings • Total 60 minutes

• Programing exercise 3: Hack it - Robot parade • 10 minutes
• Programing exercise 4: Code from scratch: Kandinsky • 10 minutes
• Teach it to yourself • 10 minutes
• Programing exercise 5: Debug challenge • 30 minutes

4 quizzes • Total 120 minutes

• RGB colours • 30 minutes
• setup, draw and Programme Flow • 30 minutes
• ellipse, rectangle, line, triangle, point • 30 minutes
• Using the console and debugging syntax errors • 30 minutes

3 discussion prompts • Total 40 minutes

• Hack it: Robot parade. What did you learn? What do you need to learn? • 10 minutes
• Kandinsky: Share your abstract master. What did you learn? What do you need to learn? • 10 minutes
• Post examples of good and bad questions • 20 minutes

Variables, objects and interaction

In this topic you will learn about three concepts: • Variables and data • Simple interaction • Code organisation

10 videos 4 readings 4 quizzes 3 discussion prompts

10 videos • Total 60 minutes

• Built-in Variables: mouseX, mouseY • 5 minutes • Preview module
• Built-in Events: mousePressed, keyPressed • 3 minutes
• Create your own variables: var, initialising and assigning • 10 minutes
• 12 top tips for naming variables • 2 minutes
• Objects • 7 minutes
• Working with operators • 10 minutes
• Mathematical functions: random, min, max • 11 minutes
• Inspecting variables in the console • 3 minutes
• Code philosophy: The elegant coder • 3 minutes
• MOOC Summary • 0 minutes

4 readings • Total 240 minutes

• Programing exercise 6: Coding from scratch - Drawing App • 180 minutes
• Programing exercise 7: Hack It - Sunrise • 10 minutes
• Teach it to yourself • 20 minutes
• Programing exercise 8: Debug challenge • 30 minutes
• Built-in Variables: mouseX, mouseY, and Events • 30 minutes
• Create your own variables: var, initialising and assigning • 30 minutes
• Working with operators • 30 minutes
• Inspecting Variables in the Console • 30 minutes

3 discussion prompts • Total 30 minutes

• Coding From Scratch: Drawing App. What did you learn? What do you need to learn? • 10 minutes
• Hack it: Sunrise. What did you learn? What do you need to learn? • 10 minutes
• Code philosophy: The elegant coder • 10 minutes

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~/Desktop/hello> javac HelloWorld.java ~/Desktop/hello> java HelloWorld Hello, World

~/Desktop/hello> javac HelloGoodbye.java ~/Desktop/hello> java HelloGoodbye Kevin Bob Hello Kevin and Bob. Goodbye Bob and Kevin. ~/Desktop/hello> java HelloGoodbye Alejandra Bahati Hello Alejandra and Bahati. Goodbye Bahati and Alejandra.

~/Desktop/hello> javac RightTriangle.java ~/Desktop/hello> java RightTriangle 3 4 5 true ~/Desktop/hello> java RightTriangle 13 12 5 true ~/Desktop/hello> java RightTriangle 1 2 3 false ~/Desktop/hello> java RightTriangle -3 4 -5 false

~/Desktop/hello> javac GreatCircle.java ~/Desktop/hello> java GreatCircle 40.35 74.65 48.87 -2.33 // Princeton to Paris 5902.927099258561 kilometers ~/Desktop/hello> java GreatCircle 60.0 15.0 120.0 105.0 // for debugging 4604.53989281927 kilometers

\( \begin{align*} red \;&=\; \max \left \{ \, 0, \; 255 \times (1 - cyan - black) \, \right \} \\ green \;&=\; \max \left \{ \, 0, \; 255 \times (1 - magenta - black) \, \right \} \\ blue \;&=\; \max \left \{ \, 0, \; 255 \times (1 - yellow - black) \, \right \} \end{align*} \)

\( \begin{align*} white \;&=\; 1 - black \\ red \;&=\; 255 \; \times \; white \; \times \; (1 - cyan) \\ green \;&=\; 255 \; \times \; white \; \times \; (1 - magenta) \\ blue \;&=\; 255 \; \times \; white \; \times \; (1 - yellow) \end{align*} \)

~/Desktop/hello> javac CMYKtoRGB.java ~/Desktop/hello> java CMYKtoRGB 0.0 1.0 0.0 0.0 // magenta red = 255 green = 0 blue = 255 ~/Desktop/hello> java CMYKtoRGB 0.0 0.4392156862745098 1.0 0.0 // Princeton orange red = 255 green = 143 blue = 0

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