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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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Toc

Table of Contents (20) Chapters Close

Preface 1. Introduction to the Ruby Programming Language FREE CHAPTER 2. Ruby Variables 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 polymorphism and usage of super

In this guide, we are going to discuss another important concept in OOP called polymorphism. Polymorphism occurs when a class that inherits from a parent class overrides the behavior provided by the parent class.

To see a basic example, we'll continue working with our ApiConnector class:

class ApiConnector
def initialize(title:, description:, url: 'google.com')
@title = title
@description = description
@url = url
end

def api_logger
puts "API Connector starting..."
end
end

I've added a new method to our class called api_logger.

Next, I'll create a class called PhoneConnector that inherits from our ApiConnector class. After we instantiate the class, it can call the api_logger method that we created in the parent class:

class PhoneConnector < ApiConnector
end

phone = PhoneConnector...
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