Anonymous inner classes are mostly used for event handling in Java. However they can also prove useful for debugging purposes. This article explains how anonymous inner classes can be used for ...

Historically, Sun tried very hard to avoid such changes: Java 1.1 introduced inner classes, Java 1.4 introduced “assert”, and beyond that the language was the same language we’d been using ...

If the thing inside the parentheses is also a class, it becomes an inner class. Java has supported inner classes since version 1.1.