Good day gr8 programmers,i want to add a time stamp that updates itself every seconds on my GUI,actually its an applictn that nids users to perform a task within a specified time limit. I want it to be smthn like ds Time: 00:00:00, the first set of zeros is the hour, next minute and nxt seconds, while d seconds start countn,it gets to 60, the minute increments every 60 seconds. I understand ds is a threadn issue n I've tried implementing the runnable interfc bt its not working as intended...am working ds desktop on netbeans so my codes may not luk gud but if any1 can help a simple code snippet will be enough. Thank you

Your task is made up of 2 parts; a way to execute a recurrent activity and a way to format and update a display.

For the 1st part you have 2 options. You could implement the Runnable interface where you set up a loop bounded by the total time limit in seconds and have the thread sleep repeatedly for 1 second only to wake up each time to update a time spent counter and update the display. You may need to write formatting code to convert the time spent in seconds to desired representational string then update a JLabel. Remember, you need to execute the update on the event dispatch thread since you will be on a separate thread. Use javax.swing.SwingUtilities.invokeLater to schedule the update on the event dispatch thread.

Alternatively, you could look at the javax.swing.Timer class which allows you execute recurrent activities at predefined intervals. All you need to do is specify a time interval and implement and register an ActionListener to receive time expiration events and perform updates on the time spent counter and display as above but without the hassles of ensuring thread safety as the class is already thread safe.

You should go with option 2.

Thanks shimao,i'll luk into d second option,n return 2gv an update.

gregorian calendar is what you need to use
Read about the class - the solution of your problem lies there

@shimao, the problem's solved. Thanks
@xterra2, it's bn solved