Explore OOP in Ruby to gain a deeper understanding of Ruby objects, Ruby methods, and Ruby classes, enabling you to solve multiple problem sets with an object-oriented approach.

Become a Ruby Developer

Module Overview
Ruby is a smart, functional, and object-oriented programming language that blends the best features of scripting power with user-friendly syntax. In this module, we’ll dive into OOP in Ruby with hands-on practice using interactive exercises and illustrations. We'll start by creating and managing Ruby objects. Next, we’ll explore Ruby methods and blocks, essential tools in Ruby programming. Finally, we'll delve into Ruby classes and how they are used to implement OOP principles.

Ruby OOP (Object-Oriented Programming)

Which instance method name doesn’t violate Ruby conventions?

Which instance method name doesn’t violate Ruby conventions?

```ruby
class Test
  	def self.foo
      puts "in foo!"
    end
  
  	def bar
      puts "in bar!"
    end
end
```

What’s the `bar` method in this code?

<pre><code class="language-ruby">class Test
 	def self.foo
 puts &quot;in foo!&quot;
 end
 
 	def bar
 puts &quot;in bar!&quot;
 end
end
</code></pre>
What’s the <code>bar</code> method in this code?

**(True or False)** An attribute reader returns the value of a class variable.

(True or False) An attribute reader returns the value of a class variable.

**(True or False)** An object's scope holds all instance variables and method names.

(True or False) An object’s scope holds all instance variables and method names.

Objects

Blocks

Conditionals

Writing Classes

Mini project 1

Conclusion

Quiz on Classes