This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
How can I get just one instance of JFrame when I click on JButton?
Every time I click on the button I got a new JFrame over the old one.
I want to use one instance of the frame(and should be the first instance I created it when I click on the button) every time I click on the button
please help me.