I am talking about the Java program as a whole. Alt-f4 terminatges GUI programs on Windows. What is the corresponding keystroke o n the Mac? The subcommands will usually start the GUI in special modes, such as a bare-bones text editor. So if a user hits alt-f4 I suppose the jre will throw an exception. I want to catch that exception and try to terminate gracefully. Can I do it in the main method? John On Fri, Nov 26, 2010 at 11:27:12AM -0800, Alex Jurgensen wrote: > Hi John, > > Are we talking on the command-line or from the GUI? The commands you listed > for the Mac nd Linux are the ones used to xit programs on the command-line > before they have completed. > > Regards, > Alex, > > > On 2010-11-26, at 11:09 AM, John J. Boyer wrote: > > > What happens of someone gets disgusted with the way things are going and > > hits alt-f4 in Windows or control-c in Mac or Linux? Suppose a fatal > > runtime error occurs? What exceptions will Java throw? Can I catch them > > in the main method and attempt to clean things up before exiting? > > > > Thanks, > > John > > > > -- > > John J. Boyer; President, Chief Software Developer > > Abilitiessoft, Inc. > > http://www.abilitiessoft.com > > Madison, Wisconsin USA > > Developing software for people with disabilities > > > > > > Alex Jurgensen, > VoiceOver Trainer, > ASquared21@xxxxxxxxxxxxxxxxx > > Visit us on the web at: www.vipbc.org > -- John J. Boyer, Executive Director GodTouches Digital Ministry, Inc. http://www.godtouches.org Madison, Wisconsin, USA Peace, Love, Service