java - 另一个类中的 KeyListener，将其添加到 JFrame 时出现问题

Question

头等舱

 private void spielfenster() {
        setSize(1280, 720);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setTitle("");
        setLayout(null);
        setLocationRelativeTo(null);

        addKeyListener(new Steuerung());  
    }   

[...]

    private void run() {
        while(true){

            if(we.nachRechts == true && we.mariox < (1280 - 38)){
                we.mariox += 4;
                repaint();
            }
            if(we.nachLinks == true && we.mariox > 0){
                we.mariox -= 4;
                repaint();
            }

            try {Thread.sleep(10);} catch (InterruptedException e) {e.printStackTrace();}
        }
    }

二等

package game;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

public class Steuerung extends KeyAdapter{

    public Werte we = new Werte();  //object, to get access to the global values in   class "Werte"

    public void keyPressed(KeyEvent p){
        int keys = p.getKeyCode();
        if(keys == KeyEvent.VK_D){we.nachRechts = true;}
        if(keys == KeyEvent.VK_S ){we.nachLinks  = true;}
    }
    public void keyReleased(KeyEvent r){
        int key = r.getKeyCode();
        if(key == KeyEvent.VK_D){we.nachRechts = true;}
        if(key == KeyEvent.VK_S ){we.nachLinks  = true;}

    }
}

新问题：当我将按键侦听器的确切代码放在“Spielfenster”类中时，它工作正常。问题出在哪里？

第二个问题（机器人现在对我来说不是很重要，但也很高兴知道）：如果我在“Steuerung”类中创建一个“Spielfenster”对象，则框架每秒打开自己大约 10 次。？！

感谢之前的！棕榈