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Comprehensive Ruby Programming

You're reading from   Comprehensive Ruby Programming From beginner to confident programmer

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Product type Paperback
Published in Jun 2017
Publisher Packt
ISBN-13 9781787280649
Length 330 pages
Edition 1st Edition
Languages
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Author (1):
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Jordan Hudgens Jordan Hudgens
Author Profile Icon Jordan Hudgens
Jordan Hudgens
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Table of Contents (20) Chapters Close

Preface 1. Introduction to the Ruby Programming Language 2. Ruby Variables FREE CHAPTER 3. Ruby Strings 4. Working with Numbers in Ruby 5. Ruby Methods 6. Ruby Iterators and Loops 7. Ruby Collections 8. Ruby Conditionals 9. Object-Oriented Programming in Ruby 10. Working with the Filesystem in Ruby 11. Error Handling in Ruby 12. Regular Expressions in Ruby 13. Searching with grep in Ruby 14. Ruby Gems 15. Ruby Metaprogramming 16. Ruby Web Frameworks 17. Working with APIs in Ruby 18. Ruby Algorithms 19. Machine Learning

The working of OOP inheritance

In this section, we are going to learn about an important object-oriented principle called inheritance. Before going into how it is executed in Ruby, let's see why it's important for building applications.

To start with, inheritance means your classes can have a hierarchy. It is best used when different classes have some shared responsibilities, since it would be a poor practice to duplicate code in each class for identical or even similar behavior.

For example, we have been working on our ApiConnector class over the last few sections. Let's say we have different API classes for various platforms, but each class shares a number of common data or processes. Instead of duplicating code in each of the API connector classes, we can have one parent class with the shared data and methods. From there, we can create child classes from this...

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