[Solved] What will be the output of this code?class Parent: def greet(self): print('Hello from Parent') class Child(Parent): def greet(self): print('Hello from Child') obj = Child() obj.greet() | Python

Python - Polymorphism and Dynamic Behavior

What will be the output of this code?

class Parent:
    def greet(self):
        print('Hello from Parent')

class Child(Parent):
    def greet(self):
        print('Hello from Child')

obj = Child()
obj.greet()

AHello from Parent

BError: greet method not found

CHello from Parent\nHello from Child

DHello from Child

Step-by-Step Solution

Solution:

Step 1: Identify method overriding
The Child class defines its own greet method, overriding Parent's greet.
Step 2: Determine which method is called
Calling obj.greet() on a Child instance calls the Child's greet method, printing 'Hello from Child'.
Final Answer:
Hello from Child -> Option D
Quick Check:
Child method overrides Parent method = 'Hello from Child' [OK]

Quick Trick: Child method runs when overridden, not parent's [OK]

Common Mistakes:

MISTAKES

Expecting both parent and child messages to print
Thinking parent method runs instead of child
Assuming error due to method name conflict

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What will be the output of this code?

Step 1: Identify method overriding

Step 2: Determine which method is called

Final Answer:

Quick Check:

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