小编Spi*_*uin的帖子

我一直在寻找其他一些线程和不同的方法来解决这个问题,并且我一直得到同样的错误.我遗漏了包裹并进口了.我正在使用Thread但是,我读过你不应该将它们用于GUI.

public class Game extends JPanel{

Player player = new Player(this);

public Game(){
    addKeyListener(new KeyListener(){
        @Override
        public void keyTyped(KeyEvent e){
        }

        @Override
        public void keyReleased(KeyEvent e){
            player.keyReleased(e);
        }

        @Override
        public void keyPressed(KeyEvent e){
            player.keyPressed(e);
        }
    });
}

public void move(){
    player.move();
}

@Override
public void paint(Graphics g){
    super.paint(g);
    Graphics2D g2d = (Graphics2D) g;
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
            RenderingHints.VALUE_ANTIALIAS_ON);

    player.paint(g2d);
}

public void timer1(){
     int delay = 10; //milliseconds
      ActionListener taskPerformer = new ActionListener() {
          public void actionPerformed(ActionEvent evt) {
           System.out.println("Running");
          }
      };
      new …