The JavaTM Tutorial

Trail: Creating a GUI with JFC/Swing
Lesson: Writing Event Listeners

Run MouseMotionEventDemo

Since you can't run the applet, here's a picture of it:

A snapshot of MouseMotionEventDemo, which demonstrates events that are fired when the user moves the mouse.

Note: Because the preceding applet uses the Swing 1.1 API, it requires Java Plug-in 1.1.2 or Java Plug-in 1.2. It won't work with Java Plug-in 1.1.1 or uncustomized 1.1 browsers. For more information about running applets in the tutorial, refer to About Our Examples. That page includes a section about Downloading Java Plug-in.