[Solved] What will be the output of this Ruby code? class Parent def greet(name) "Hello, #{name} from Parent" end end class Child | Ruby

Ruby - Inheritance

What will be the output of this Ruby code?

class Parent
  def greet(name)
    "Hello, #{name} from Parent"
  end
end

class Child < Parent
  def greet(name)
    super(name) + " and Child"
  end
end

puts Child.new.greet("Alice")

A"Hello, Alice from Child"

B"Hello, Alice from Parent and Child"

C"Hello, Alice from Parent"

DError: wrong number of arguments

Step-by-Step Solution

Solution:

Step 1: Understand method overriding and super call
The Child#greet method calls super(name), which calls Parent#greet(name) and returns "Hello, Alice from Parent".
Step 2: Concatenate the returned string
The child method adds " and Child" to the parent's returned string, resulting in "Hello, Alice from Parent and Child".
Final Answer:
"Hello, Alice from Parent and Child" -> Option B
Quick Check:
super returns parent's string + child's addition [OK]

Quick Trick: super returns parent's result; child adds more [OK]

Common Mistakes:

Thinking super calls child's method again causing recursion
Ignoring the concatenation after super call
Assuming super without arguments forwards none

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What will be the output of this Ruby code?

Step 1: Understand method overriding and super call

Step 2: Concatenate the returned string

Final Answer:

Quick Check:

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