Java interfaces are different from classes, and it’s important to know how to use their special properties in your Java programs. This tutorial introduces the difference between classes and ...

Why does Java's standard class library contain empty interfaces like Cloneable and Serializable? Find out why in this sixth installment in the "Object-oriented language basics" series. You'll also ...

Code that wants to use the interface methods can declare an object of the interface type, get one from somewhere (often people write Factory classes to do this) and call the interface methods ...