Learn the four types of polymorphism in Java, then start using subtype polymorphism to execute different forms of the same Java method.

Oracle has been working to bring value types to the Java language and runtime. We present an update on the current status of this work.

What's the difference between double vs float data types? In this quick tutorial we show how float and double Java types differ, along with guidance on how to choose one over the other.

Design symmetry means that if one method causes an effect, the logically opposite method should cause the opposite effect. In this Java tip, David Petersheim discusses why this can be a subtle ...

The Java language spec lists 10 Java constructor types, including default, no-args, canonical, private parameterized, generic, overloaded and anonymous.

Why should you use Collections class methods rather than similarly named fields to obtain empty collections? Type safety makes the crucial difference.