Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

What is an abstract class? An abstract class is a template definition of methods and variables in a specific class, or category of objects. In programming, objects are units of code, and each object ...

Maximizing code reuse in your Java programs means writing code that is easy to read, understand, and maintain. Here are eight ways to get started.

The Java Runtime Environment provides a “container” for those elements and your code to run in. The JDK is the “compiler” that interprets the code itself and executes it.

Sun provides two class hierarchies for developing Java applications with graphical user interfaces. The first, the Abstract Window Toolkit, has been distributed with Java since version 1.0. A picture ...