I have a JDialog as the main window in my application (originally it was a JFrame but it showed in the taskbar which I didn't want).
Currently I am doing:
setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
and when I click an exit button:
frame.dispose();
But the process still seems to hang around in the background
JFrame had JFrame.EXIT_ON_CLOSE
which seemed to do what I wanted.
How can I close my application properly?
You can add
System.exit(0);
where you want the program to end, maybe immediately after the dispose() line.