Question

I’m making simple game with very simple thread (1 sec delay)
got problem with the thread, I have while(true) loop with the code:

try {
    while (true) {
       Ltimer.setText(getTimeElapsed());
       Thread.currentThread();
       Thread.sleep(1000); // Thread sleeping for 1 second           
    }
} catch (Exception e) {
    JOptionPane.showMessageDialog(null, "error with timer");       
} 

it simply get string every second and updates label text
when I’m trying to run it the gui freeze and I can only see the label in a black background, all buttons and bg img dissappeared. tried to fix with
setVisible()
repaint()
but got nothing..

any other options?

Answer 1

don’ use Thread#sleep(int) during EDT, then you have issue with Concurency in Swing, if you need to delay any action use java.swing.Timer, example for EDT lack here