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You could use an anonymous inner class, as stated above. Did you do any googling of that? Something like:

ActionListener al = new ActionListener(){
public void actionPerformed(ActionEvent e){...

Well, that's not valid syntax, and that's not what I suggested. Recommended reading: Lesson: Writing Event Listeners (The Java™ Tutorials > Creating a GUI With JFC/Swing)

Edit- I see Sean4u...

You don't need to extend JPanel, but you do need an instance (I'm assuming of ActionListener) to pass into the method. Do that by implementing ActionListener in a class you actually instantiate or by...