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.
I am developing one Desktop Application Using Swing. In my application, I designed Menu frame, whenever i click one menu_item respective page will load, suppose again i click same menu_item , if the frame already exists then i will open already opened frame otherwise it will open new frame. please help how to perform above things?