Does Events in java are treated in a separated thread or I have to do it myself?

Question

Im pretty new to programming....so I am making a music Player that needs some features I need to treat one Event at the same time in 2 classes. For example...

The Player is plaing music on its own thread, when this music is done, it fires musicFinished(MusicEvent), go to the Playlist class and asksForAnotherMusicToPlay(), then starts playing again. When musicFinished fires all this happens at the same time: -A Logger, who is listening for the event go write it to a log file. (Do I need another thread here or the event is already treated in another thread?) -The GUI displays that the music finished, updates a label and set clock to 0.(For this I would use SwingUtilities.invokeLater, right??)

So whats the best solution for this case? Making my own event? What about the threads? do I have to make then myself??I already googled for it and found out that the actionPerformed is executed in the EDT(Event Dispatching Thread) but I dont know for other events. are they all??? Thanks

Answer 1

All Swing event handlers are called from the EDT. Also, SwingUtilities.invokeLater will run your code in the EDT too, it'll just wait until all pending event handlers are called. I'm not sure if this is what you want - if not, you'll need to start your own thread.