What is dynamic method dispatch, and why is it useful?
Inheritance and Polymorphism
Original Khojo Papers practice question — not from a past board paper.
Overloading means defining several methods with the same name but different parameter lists in the same class, and the choice is made at compile time. Overriding means redefining in a subclass a method already defined in its superclass, with the same signature, and the choice is made at run time according to the actual type of the object.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Overloading is compile-time polymorphism and overriding is run-time polymorphism.
From the same topic and chapter, at a similar level.
What is dynamic method dispatch, and why is it useful?
Inheritance and Polymorphism
Why does Java not allow a class to extend more than one class?
Inheritance and Polymorphism
What does the super keyword do in Java?
Inheritance and Polymorphism
What is an abstract class, and how does it differ from an interface in Java?
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?
Inheritance and Polymorphism
State and verify the absorption law X + X·Y = X using a truth table.
Boolean Algebra