Do not use a GUI builder. All fields used are to be in the main window Optional. Add a subtract button and allow the user to input two different dates. When the user clicks on the subtract button, display the number of days between the two dates. Display the number of days in the TextField used above for the number of days.
All fields used are to be in the main widow.
This means that the user can enter one date and a number of days to compute a new date, or enter two dates and compute the difference in days. The optional part should run as an applet. All rights reserved.