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 ...

The more familiar you are with Object and its methods, the more you can do with your Java programs.

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 ...

Learn how Remote Method Invocation (RMI), an application programming interface for Java, preserves the object model and its advantages across a network.