JButton

I was wondering if anyone could help me with this simple problem.

How do you set a JButton to start off as false and if another JButton is pressed it is enabled true. For example: a slot machine. If theres no money in the balance then the play button is disabled but if you press add a pound then the play button is enabled

Thank You

Please don't double post. Your other post was moved to a more appropriate location
http://www.javaprogrammingforums.com...7-jbutton.html
Thread locked.