[Solved] What will be the output of this Ruby code? class Person def initialize(name) @name = name end def greet "Hello, #{@name}!" end end p = Person.new("Alice") puts p.greet | Ruby

Ruby - Classes and Objects

What will be the output of this Ruby code?

class Person
  def initialize(name)
    @name = name
  end
  def greet
    "Hello, #{@name}!"
  end
end

p = Person.new("Alice")
puts p.greet

AHello, @name!

BHello, Alice!

CHello, !

DError: undefined method greet

Step-by-Step Solution

Solution:

Step 1: Understand object creation and initialization
The Person.new("Alice") calls initialize with "Alice", setting @name to "Alice".
Step 2: Check the greet method output
The greet method returns "Hello, #{@name}!" which becomes "Hello, Alice!" when printed.
Final Answer:
Hello, Alice! -> Option B
Quick Check:
Instance variable set in initialize used in greet [OK]

Quick Trick: Instance variables set in initialize are accessible in other methods [OK]

Common Mistakes:

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