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 ...

This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!

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 ...

Java currently supports only two types of value: primitives and object references. Project Valhalla extends this by introducing inline classes which are a new form of type that exhibit some ...

The Java serialization tutorial In this Java serialization example, we will use both the ObjectOutputStream and the ObjectInputStream to save and retrieve the state of a simple JavaBean. The POJO will ...

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.

Last time, in ”Transitioning into object-oriented programming using Java,” we learned that for a programming language to be truly object-oriented, it should support information hiding ...