Specifications

Sun Services
Java™ Programming Language Module 11, slide 4 of 22
Copyright 2005 Sun Microsystems, Inc. All Rights Reserved. Sun Services, Revision F
What Is an Event?
• Events – Objects that describe what happened
• Event sources – The generator of an event
• Event handlers – A method that receives an event
object, deciphers it, and processes the user’s interaction
Frame
Panel
Button
The user clicks on the button
Some Event Handler
actionPerformed(ActionEvent e) {
...
}
ActionEvent