🚀 go-pugleaf

Hi,  I am writing a applet with JBuilder 2.  My program runs a thread
that keeps checking a screen for a field of text to appear.  When this
happens I want to trigger and event back in the main program.
    I figured I could use the same functionality that a button event
uses.  I would throw some kind of event from the Thread, and then the
Main program would have a listener that would be activated, and then it
would run some code.
    If some one could point me in the right direction it would be
appreciated.

Thanks