Class 12 · ICSE · Computer Science

Inheritance and Polymorphism

Single and multilevel inheritance, method overriding and overloading, abstract classes and interfaces.

Questions

6 questions in this chapter.

Answer available
Class 12 · Computer Science · Inheritance and Polymorphism
A class B extends class A, and both define a method show(). If A a = new B(); a.show(); is executed, which version runs and why?
3 marksMediumNumerical
Answer available
Class 12 · Computer Science · Inheritance and Polymorphism
What does the super keyword do in Java?
3 marksMediumShort answer
Answer available
Class 12 · Computer Science · Inheritance and Polymorphism
Distinguish between method overloading and method overriding.
3 marksMediumShort answer
Answer available
Class 12 · Computer Science · Inheritance and Polymorphism
Why does Java not allow a class to extend more than one class?
3 marksMediumShort answer
Answer available
Class 12 · Computer Science · Inheritance and Polymorphism
What is an abstract class, and how does it differ from an interface in Java?
3 marksMediumShort answer
Answer available
Class 12 · Computer Science · Inheritance and Polymorphism
What is dynamic method dispatch, and why is it useful?
3 marksMediumShort answer