action listener help in Java?

You're trying to declare a method called run() inside a method called actionPerformed(). You cannot declare a method inside another method.

It will probably run fine if you

Delete line 25

then

delete line 23

(this will let the JOptionPane pop up in the ActionPerformed method directly.)

action Listeners are training that you'll upload to particular different training. at the same time as an action takes position to that different type, the ActionListener it truly is further executes the "actionPerformed" approach. regularly, you should have a form that extends ActionListener for you to administration what takes position contained in the "actionPerformed" approach by overriding it. Then once you're including the ActionListener to the object you want to hearken to for, you in simple terms upload a clean social gathering of the kind you created. The listener might want to probable be in a quite a few type.