How to popup a small window in bottom right corner at specified time in Java

I set reminders in my application. I want to popup small window in bottom right corner of the screen at specified time. How can we popup a small window at any specified time which is set in开发者_如何学运维 reminder?

When you create Windows in Swing you can call setLocation() and setSize() to specify a specific place on the screen for a small Window.