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 ...

Reference objects aren't just useful when memory is at a premium; they can also be used to provide slick caching abilities to any application.

Copying objects is a common Java programming operation that has one serious trap. Here's how to avoid copying from an object reference and only copy the instance and values you want.