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)

Is it possible to have a conditional statement that has an `elsif` branch but not an `else` branch?

Is it possible to have a conditional statement that has an <code>elsif</code> branch but not an <code>else</code> branch?

What’s the output of the following code?

```ruby
num = 5

if nil
  puts "if"
elsif num
  puts "elsif" 
else 
  puts "else"
end
```


What’s the output of the following code?
<pre><code class="language-ruby">num = 5

if nil
 puts &quot;if&quot;
elsif num
 puts &quot;elsif&quot; 
else 
 puts &quot;else&quot;
end
</code></pre>

What’s the output of the following code?

```ruby
def test()
  if true
    1
  else
    2
  end
end

puts test
```

What’s the output of the following code?
<pre><code class="language-ruby">def test()
 if true
 1
 else
 2
 end
end

puts test
</code></pre>

Objects

Blocks

Conditionals

Writing Classes

Mini project 1

Conclusion

Quiz on Conditionals