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 ...

It was announced approximately 18 months ago that JDK 7 would include a new java.util.Objects class that would "hold commonly-written utility methods." As part of this announcement , Joe Darcy ...

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 ...

Effective memory management in Java relies on effective reference management by Java programmers. Reference management can be difficult in the context of framework-based development. Leonard provides ...

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.

Any object representing a mutable data source in Java exposes methods for reading and writing its data as a stream. Java.io is the main package for most stream-oriented I/O classes.