How do you use the Event Dispatch Thread?

Question

I learned about how swing isn\'t thread-safe. Delving deeper, I discovered that every modification to a swing component must be done on the Event Dispatch Thread in order to

Answer 1

note that any code executed from event handlers is already run in the EDT (the Event in the acronym)

this means that for general use (while you don't mess with swingworkers and threadpools and such) you are always inside the EDT

and you can always query if you are in the EDT with SwingUtilities.isEventDispatchThread()

also note that in your code the call to invokeAndWait will fail and throw an error when you are in the EDT already