How do you want to trigger this comparison - is it when you click on another button or when you have finished entering the date and press enter or some other mechanism?
actually i'm trying to make an app.....
in this when i press the date button and get the date, it will automatically check the date and time and accordingly show the "to-do thing" defined for the time.....

so it will much easier for me if you tell me how to get that date format as a string.....

and more question.... is it necessary to define a action listener class for every button separately or i can do it for all the buttons in one class only..........