i am developing an application for blackberry i want alarm to ring on a specific date please help me out how to do it.
                
                A: 
                
                
              Hi!
Just a short tips:
- Write background application to make alarm and UI application to configure things
UPDATE
Just extand you application class from Application instead of UiApplication
See examples:
BlackBerry background applications on StackOverflow.com  
Also, in Eclipse, in Project Properties->BlackBerry Project Properties->Application you can set process to be system module (hide app icon on device), as well to be start-up.
- Save configuration to Persistent Store 
 Blackberry - application settings save/load
- Use different types of notification (from Dialog to Alarm) 
 Blackberry - How to use notification icon in statusbar
 Notification Service for Blackberry OS 4.5 application
 Add a notification icon at the status bar in BlackBerry JDE 4.5.0
 BlackBerry - Reminder and SMS feature implementation
                  Max Gontar
                   2009-12-28 15:07:53
                
              Please guide me how to write background app i have been searching to do it using eclipse. any short example will do the magic please help me
                  
                   2010-01-10 09:42:16
                sure, see update!
                  Max Gontar
                   2010-01-10 10:18:54