[Solved] Identify the error in this Ruby code snippet: class Animal; end class Dog — Ans: Missing question mark in is_a? method call | Ruby

Ruby - Inheritance

Identify the error in this Ruby code snippet:

class Animal; end
class Dog < Animal; end
obj = Dog.new
puts obj.is_a(Animal)

ANo error, code runs fine

BMissing question mark in is_a? method call

Cobj is not an instance of Dog

DDog class does not inherit from Animal

Step-by-Step Solution

Solution:

Step 1: Check method syntax
The method is_a? requires a question mark at the end.
Step 2: Identify the error
The code uses is_a without the question mark, causing a NoMethodError.
Final Answer:
Missing question mark in is_a? method call -> Option B
Quick Check:
Method is_a? needs question mark [OK]

Quick Trick: Remember is_a? ends with a question mark [OK]

Common Mistakes:

Master "Inheritance" in Ruby

9 interactive learning modes - each teaches the same concept differently

More Ruby Quizzes

Identify the error in this Ruby code snippet: