Swing programs differ from both the console-based programs and the AWT-based programs.Swing programs also have special requirements that relate to threading. The best way to understand the structure of a Swing program is to work through an example. There are two types of Java programs in which Swing is typically used. The first is a desktop application. The second is the applet. This section shows how to create a Swing application. The creation of a Swing applet is described here. Although quite short, the following program shows one way to write a Swing application. In the process, it demonstrates several key features of Swing.