Learn Ruby Programming by Examples
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Learn Ruby Programming by Examples

About the Book

On December 8, 2013, US President Barack Obama "asked every American to give it a shot to learn to code" (watch it here), kicking off the Hour of Code campaign for Computer Science Education Week 2013. "Learning these skills isn't just important for your future, it's important for our country's future," President Obama said.

The message is clear: coding (aka. programming) is an important skill for this Information Age, and many will agree.  Some might wonder: there are many "how to program" books, why another one? 

A typical how-to-program book will go through the programming concepts, syntax and followed by demonstrations with simple examples. I have read dozens of them (for different programming languages) and taught this way at universities. It was not an effective approach. It is more like a teacher dumping knowledge upon students.

I believe a better way is to engage students in doing carefully selected programming exercises and guiding them solving interesting and useful computer programs. New programming concepts are introduced gradually.  I put this into practices by teaching my 12-year old daughter Courtney. This book is the outcome of the journey.  


About the Authors

Zhimin Zhan
Zhimin Zhan

Zhimin Zhan is the founder and principal agile testing coach of AgileWay Pty Ltd, Australia. As an advisor and coach, he helps organizations by implementing test automation with Continuous Testing using open technologies such as Selenium WebDriver / Appium and RSpec. Zhimin is the creator of TestWise, the next-generation functional testing tool that supports functional test refactorings, and BuildWise, an award-winning Continuous Testing Server. Zhimin is a frequent speaker and author of 12 books on software testing and programming. He shares his test automation and CI experience on Substack and Medium.

Courtney Zhan
Courtney Zhan

Zhimin Zhan is the founder and Continuous Integration Officer of AgileWay Pty Ltd, Australia. As an advisor and coach, he helps organzations by implementing test automation with Continuous Integration using open technologies such as Selenium WebDriver and Watir. Zhimin is the creator of TestWise, the next-generation functional testing tool that supports functional test refactorings, a frequent speaker and writer. He shares his test automation and CI experience at testwisely.com.

Courtney Zhan just started her high school at All Hallows in Brisbane, she loves reading, drawing and Manga.

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Table of Contents

  • Preface
    • What is unique about this book?
    • Who should read this book
    • How to read this book
    • Send me feedback
  • 1. Introduction
    • 1.1 Ruby on Windows
    • 1.2 Ruby on Mac OS X
    • 1.3 Online Ruby Tutorials
    • 1.4 Rhythm for Working on the exercises
    • 1.5 Suggestions on Windows Layouts
    • 1.6 Type of errors
    • 1.7 Interactive Ruby Shell (IRB )
  • 2. Printing Shapes
    • 2.1 Print out Triangle
    • 2.2 Print out a half diamond
    • 2.3 Print out diamond shape
    • 2.4 Print big diamond, name your size
    • 2.5 Exercises
  • 3. Quiz Time
    • 3.1 Simple Add Calculator
    • 3.2 Addition Quiz
    • 3.3 Subtraction Quiz
    • 3.4 Number Guessing Game
    • 3.5 Exercises
  • 4. Array and Hash
    • 4.1 Sort Children Names
    • 4.2 Get the character from given alphabetical position
    • 4.3 Calculate Average
    • 4.4 What makes 100% in life?
    • 4.5 Exercises
  • 5. Useful Utility Programs
    • 5.1 Fahrenheit to Celsius Converter
    • 5.2 Personal Income Tax Calculator
    • 5.3 Word count
    • 5.4 Generate Lotto Numbers
    • 5.5 Number sorting
    • 5.6 Exercises
  • 6. Fun Math
    • 6.1 Finding Divisors
    • 6.2 Finding the Highest Common Factor
    • 6.3 Finding the Least Common Multiple (LCM)
    • 6.4 Finding Prime Numbers
    • 6.5 Fibonacci sequence
    • 6.6 Consecutive Sums
    • 6.7 Exercises
  • 7. Methods
    • 7.1 Finding the Highest Common Factor (using method)
    • 7.2 Generate Lotto Numbers (using a method)
    • 7.3 Finding the LCM for multiple numbers (using method)
  • 8. File and Network
    • 8.1 Calculate average score
    • 8.2 Count words and lines in a text file
    • 8.3 Mail merge birthday invitation cards
    • 8.4 Rename files
    • 8.5 Currency exchange with live quoting
    • 8.6 Send individual thank you emails
    • 8.7 Exercises
  • 9. Object Oriented Programming
    • 9.1 Calculator (Class)
    • 9.2 Age of Teacher and Students
    • 9.3 Calculate Sales Tax
    • 9.4 Library System
    • 9.5 Sunflower vs Zombies Game Simulation
    • 9.6 Exercises
  • 10. Classic Puzzles
    • 10.1 Google Labs Aptitude Test
    • 10.2 Fibonacci and HCF (Recursion)
    • 10.3 Calculate Compound Interest
    • 10.4 Farmer Crosses River Puzzle
    • 10.5 Cryptic Math Equation (Backtracking)
    • 10.6 More Puzzle Exercises
  • 11. Web Test Automation
    • 11.1 The best job is not far away
    • 11.2 Drive Firefox with Selenium WebDriver
    • 11.3 Drive Chrome with Selenium WebDriver
    • 11.4 Complete Test with Verification
    • 11.5 For more on test automation …
  • 12. Beyond This Book
    • 12.1 More Ruby
    • 12.2 More exercises
    • 12.3 Automated Testing with Ruby
    • 12.4 Web Programming with Ruby on Rails
    • 12.5 Game Programming and Mobile Apps
    • 12.6 Learn another programming language
  • Appendix 1 Ruby in Nutshell
  • Appendix 2 Solutions
    • Chapter 2
    • Chapter 3
    • Chapter 4
    • Chapter 5
    • Chapter 6
    • Chapter 7
    • Chapter 8
    • Chapter 9
    • Chapter 10
    • Chapter 11
  • Resources
    • Code Editor
    • Ruby Language
    • Ruby Tutorials
    • More Exercises
    • Test Automation
    • Others

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