EDT and other Thread relations regard repaint() method java

Question

if the GUI was sure build by EDT does a repaint call on some other Thread invoke painting on the EDT? if not, how do i make sure it does, the more efficient the better.

Answer 1

Basically method repaint() invoke EDT by default, everything works until first Thread.sleep(int) was called, then you have an issue with Concurency in Swing ,

Have to look at Swing Timer , which providing basic funkcionalities for painting in the Swing or delaying any event(s) in the Swing GUI ,

If your update(s) isn't about Graphics then you can invoke EDT by wrapping output to the Swing GUI to the invokeLater()