Which OOP feature helps you write a base class Vehicle and create specific classes like Car and Bike that share common code but also have their own details?

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Java - Object-Oriented Programming Concepts

You want to reuse code for different types of vehicles in Java. Which OOP feature helps you write a base class Vehicle and create specific classes like Car and Bike that share common code but also have their own details?

AInheritance to extend Vehicle class for Car and Bike

BEncapsulation to hide Vehicle data from Car and Bike

CPolymorphism to create unrelated classes Car and Bike

DAbstraction to write all code only in Vehicle class

Step-by-Step Solution

Solution:

Step 1: Understand code reuse in OOP
Inheritance allows new classes to reuse code from a base class and add their own features.
Step 2: Match feature to scenario
Vehicle is base class; Car and Bike extend it to share common code and add details.
Final Answer:
Inheritance to extend Vehicle class for Car and Bike -> Option A
Quick Check:
Code reuse via inheritance = B [OK]

Quick Trick: Use inheritance to share and extend code [OK]

Common Mistakes:

Confusing encapsulation with code reuse
Thinking polymorphism creates unrelated classes
Believing abstraction means no subclass code

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More Java Quizzes

Which OOP feature helps you write a base class Vehicle and create specific classes like Car and Bike that share common code but also have their own details?

Step 1: Understand code reuse in OOP

Step 2: Match feature to scenario

Final Answer:

Quick Check:

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