Java Swing - GUI freezes when completing calculations after clicking a button

Question

I have created a scientific calculator program. What my program does is take \"label\" which is the string inputted by the user using buttons and evaluate the expression. What m

Answer 1

The solution is to:

1. Use a separate Thread and use SwingUtilities.inovkeLater() to place the text field updates on the EDT, or

2. Use a SwingWorker, which has a built in API to support the above to features.

Read the section from the Swing tutorial on Concurrency in Swing for complete information and working examples of a SwingWorker.