Java Swing GUI hour glass

Question

There is a JTabbedPane In my Swing program. When user clicks on a tab, the program takes a while to get the data and process the results, then shows the results in the selected tab.

How can I display a hour glass, or something of that effect so that user knows it's processing data? Not to click on the tab again before it finishes it job.

Answer 1

The simplest way is to just call setCursor on the appropriate component (probably the top-level window) with the appropriate Cursor.

component.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));

And then set it back when you are done.

component.setCursor(Cursor.getDefaultCursor());