Hi,
You need to have the function
public void actionPerformed(ActionEvent e) {
}
in any classes that implement ActionListener. Basically this function is called when something happens to the gui objects it is listening to. So typically you do something like this:
button.addActionListner(this);
...
...
public void actionPerformed(ActionEvent e) {
if (e.getSource() == button) {
// button was pressed. take action if needed.
}
}
For a more thorough explanation, see Sun's excellent "How to Write an Action Listener" http://java.sun.com/docs/books/tutorial/uiswing/events/actionlistener.html
Hope this helps!
Ed
