Question

What I want to do is to make some part of the code in a class of my programm to wait for sometime, but my problem is that the way I am trying to it makes my GUI to stuck. I mean, pressing a button i make my program to wait for sometime, while my program is waiting i press a button, the button is pressed but after that if i try to press any other button while the program is still waiting i can’t, the first button i pressed seems to be pressed and the other button can’t be pressed although the program does what I want to do(accepts all the commands) the only problem is that my GUI is locked.

Answer 1

You need to use multiple threads. Any “work” that needs to be done that may take any significant / noticeable amount of time needs to be done in its own thread. (This certainly includes any code where you are calling sleep.)

Here are 3 good references:

• http://docs.oracle.com/javase/tutorial/uiswing/concurrency/
• http://java.sun.com/products/jfc/tsc/articles/threads/threads1.html
• http://java.sun.com/developer/technicalArticles/Threads/swing/