Learn the differences between these Java language elements and how to use them in your programs. Abstract classes and interfaces are plentiful in Java code, and even in the Java Development Kit ...

While learning Java, you’ll occasionally encounter a language behavior that leaves you puzzled. For example, what does expression new int[10] instanceof Object returning true signify about arrays?

June 2025 marks the 30th anniversary of Java, the language that helped define modern enterprise computing. If you had told me ...

extends T> elements, Comparator ... Brian Goetz is the Java Language Architect at Oracle, and was the specification lead for JSR-335 (Lambda Expressions for the Java Programming Language.) ...

The Java language and virtual machine are almost two decades old ... changing it from a very smart server and relatively dumb client to a community of cooperating elements of various levels of power ...