Question

我一直在寻找其他一些线程以及不同的方法来解决这个问题，我一直都会遇到同样的错误。我遗漏了包裹并进口了。我正在使用Thread，但我知道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 Timer(delay, taskPerformer).start();;

Thread.sleep(10);
}

public static void main(String args[]) throws InterruptedException, Exception{
    int Width = 800;
    int Height = 400;
    Game game = new Game();

    JFrame frame = new JFrame("quest Kings");
    frame.setSize(Width, Height);
    frame.setVisible(true);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().setBackground(Color.green);
    frame.add(game);
    frame.setResizable(false);


    //What to do after the program starts
    while(true){
        game.move();
        game.repaint();
        game.timer1();

    }
}
}

Answer 1

您导入了错误的定时器或未导入任何定时器。确保您的import语句包含

import javax.swing.Timer;

请注意，java.util.Timer导入不计算在内。这就是为什么将您的导入包含在您的问题中至关重要。

Timer（构造函数计时器（int，actionlistener）未定义

1 个答案: