Welcome to the Java 101 study guide. This guide complements " Classes Within Classes." It provides a glossary of terms specific to that article, tips and cautions, new homework, solutions to last ...

Starting with JDK 1.1, Java provided the ability to create nested classes. A nested class is defined inside another class. There are two types of nested classes: static nested classes and inner ...

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 ...

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

As such, you can incorporate the functional Consumer interface into your code simply by creating a class that implements java.util.function.Consumer, or by coding an inner class. Here is the Java code ...