Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

For this Java serialization tutorial, we will to create a simple Score class. This class will model the score of a rock-paper-scissors game, with properties that count the number of wins, losses and ...

Object-oriented systems are usually partitioned into layers of related responsibilities and only dependencies in one direction are allowed, from higher layers (more specific, less reusable) to lower ...

Two of the key concepts in object-oriented programming (OOP) are inheritance and composition. While both can help you reuse code, there are key differences between them.