The first half of this introduction to Java inheritance teaches you how to use the extends keyword to derive a child class from a parent class, invoke parent class constructors and methods, and ...

OOP (object oriented programming) is a paradigm that is centered on objects and data rather than actions and logic. When working with OOP, it is imperative that you identify the objects and their ...

Extensible applications allow you to add functionality without rewriting your application: you dynamically select the classes that make up your application at runtime rather than design time. I once ...