Inheritance and composition are two programming techniques developers use to establish the relationship between classes and objects. Whereas inheritance derives one class from another, composition ...

We will focus on the relationship between polymorphism and Java inheritance. The main thing to keep in mind is that polymorphism requires an inheritance or an interface implementation. You can see ...

1. A plastic manufacturer sells plastic in different shapes like 2D sheet and 3D box. The cost of sheet is Rs 40/ per square ft. and the cost of box is Rs 60/ per cubic ft. Implement it in Java to ...

This allows you to establish a hierarchy for your classes. A class that inherits from some other class (referred to as a superclass) is called a subclass. While a subclass inherits methods and ...

Inheritance is one of the most powerful concepts in all of programming. Without it, it’d be tough to do many of the cool things we do. One of my favorite games as a kid was Conquer 2.0. The game was ...