swing - How to fix animation lags in Java?

Question

I am trying to animate my game in Java using the code below in a subclass of JComponent, but this code causes lags and jitters in the animation, and objects appear to be "split" as they are redrawn rapidly on the screen. How can I resolve this issue? Should I redraw each item on a separate thread?

public GameScene(){
   setDoubleBuffered(true);
   run();
}

...
public void run() {
    Thread animation = new Thread(new Runnable() {
        public void run() {
            updateGraphics();
        }
    });

    animation.start();
}

public void updateGraphics() {
    while (true) {
        repaint();

        try {
            Thread.sleep(5);
        } catch (Exception ex) {

        }
    }
}

Answer 1

Instead of using Java Timer try with Swing Timer that is more suitable for Swing application.

Please have a look at How to Use Swing Timers

Here is the sample code:

int delay = 1000; //milliseconds
ActionListener taskPerformer = new ActionListener() {
  public void actionPerformed(ActionEvent evt) {
      //...Perform a task...
  }
};
new Timer(delay, taskPerformer).start();

Find a Sample code here