[Solved] What will be the output of this Ruby code?class Light def on? true end def on! puts "Turning on" end end light = Light.new puts light.on? light.on! | Ruby

Ruby - Methods

What will be the output of this Ruby code?

class Light
  def on?
    true
  end

  def on!
    puts "Turning on"
  end
end

light = Light.new
puts light.on?
light.on!

Atrue\nTurning on

BTurning on\ntrue

Ctrue\ntrue

DTurning on\nTurning on

Step-by-Step Solution

Solution:

Step 1: Analyze method on?
This method returns true, so puts light.on? prints "true".
Step 2: Analyze method on!
This method prints "Turning on" using puts, so calling light.on! outputs "Turning on".
Final Answer:
true\nTurning on -> Option A
Quick Check:
? = boolean return, ! = modifies or side effect [OK]

Quick Trick: ? returns boolean, ! often has side effects [OK]

Common Mistakes:

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