Handling Events

Abstract

We have looked at how the components in the java.awt package are used to design Web pages, but this is only part of the picture. The pages we have created do not do anything, there needs to be some code in the background which responds to the selecting of an item from a list or clicking on a button. These components have events associated with them, for example when you click on a button or select an item from a list an event occurs. In Java you can detect that event and take some action in response to it. The Java code that you write to deal with events are called event procedures. The event handlers for the mouse and the keyboard are members of the java.awt.component class.