[Solved] What will be the output of this Ruby code?class Demo def self.execute new.instance_action end def instance_action self.class.name end end puts Demo.execute | Ruby

Ruby - Classes and Objects

What will be the output of this Ruby code?

class Demo
  def self.execute
    new.instance_action
  end
  def instance_action
    self.class.name
  end
end
puts Demo.execute

A"Demo"

B"Demo.execute"

C"Demo::instance_action"

DAn error is raised

Step-by-Step Solution

Solution:

Step 1: Understand self in instance method
Inside instance_action, self refers to the instance of Demo.
Step 2: Calling self.class.name
self.class returns the class of the instance, which is Demo. Calling .name returns the string "Demo".
Step 3: Execution flow
Demo.execute calls new.instance_action, so the output is "Demo".
Final Answer:
"Demo" -> Option A
Quick Check:
self.class.name returns class name string [OK]

Quick Trick: self.class.name returns the class name string [OK]

Common Mistakes:

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