Inheritance Introduction
In the Java language, classes can be derived from other classes, thereby inheriting fields and […]
Inheritance
Inheritance – Member Access
If any of the method or data member is declared private then that private variable […]
Using super
Whenever a subclass needs to refer to its immediate superclass, it can do so by […]
Multilevel Inheritance
Conside the following code for multilevel inheritance example : Example Output
Dynamic method dispatch
Dynamic method dispatch is the mechanism by which a call to an overridden method is […]
Abstract Classes
There are situations in which you will want to define a superclass that declares the […]
Final – with Inheritance
Final has three uses 1. To use as a constant variable 2. To prevent Method […]
abstract class constructors
The superclass Product is abstract and has a constructor. The concrete class TimesTwo has a […]
What is the use of equals method in Java?
Equals method is used when we compare two objects. Default implementation of equals method is […]