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 ...

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.

A federal appeals court on Friday reversed a federal judge's ruling that Oracle's Java API's were not protected by copyright. The debacle started when Google copied certain elements—names ...

Google countered that the Java language has always been "free and open" to use—and that included re-implementing Java APIs. Sun and its CEO Jonathan Schwartz accepted Android as a legitimate, if ...