Java Tips: A JButton tooltip example

Java/Swing FAQ: How do I set the help text (i.e., help text, balloon text, tooltip text) on a JButton?

Just call the setToolTipText method on the JButton. Here's a quick JButton tooltip display example:

// create a button with tooltip help text
JButton button = new JButton("Click Me");
button.setToolTipText("Click this button to make something happen.");

References:

http://alvinalexander.com/blog/post/jfc-swing/how-set-help-tooltip-balloon-text-jbutton