String[] choices = {
"Yes, Save and Quit", "No, Quit without saving", "CANCEL"
};
int result = JOptionPane.showOptionDialog(this,
"You have unsaved changes. Save before quitting?", "Warning",
JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE,
null, choices, choices[0]);
// Use of "null" as the Icon argument is contentious... the
// document says you can pass null, but it does seem to
// generate a lot of blather if you do, something about
// a NullPointerException :-) ...
if (result >= 0)
System.out.println("You clicked " + choices[result]);
switch(result) {
case -1:
System.out.println("You killed my die-alog - it died");
return false;
case 0: // save and quit
System.out.println("Saving...");
// mainApp.doSave();
return true;
case 1: // just quit
return true;
case 2: // cancel
return false;
default:
throw new IllegalArgumentException("Unexpected return " + result);
}
