Here's how to make classes, fields, methods, constructors, and objects work together in your Java programs.

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

An OpenJDK proposal would preview value classes and objects in a forthcoming version of Java. The feature would provide Java class instances that have only final fields and lack object identity.

For new Java programmers, the JOptionPane class is a great visual and user-friendly introduction to user input and Swing-based programming. Here's how to get started.

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 ...