Nesting classes is one way to better organize your code. For example ... the two are closely related. In Java, nested classes are categorized as either static member classes or inner classes.

In a previous Java 101 tutorial, you learned how to better organize your code by declaring reference types (also known as classes and interfaces) as members of other reference types and blocks.

A Java Swing-based Hello World program, which uses Java's desktop development APIs, is a nice departure from console-based programming. package com.example.helloworld.static; public class HelloWorld { ...