在java keyhandler中降低键盘灵敏度？

Question

private class KeyHandler implements KeyEventDispatcher{ 

    @Override 
    public boolean dispatchKeyEvent(KeyEvent e) { 
     if(e.getKeyCode() == KeyEvent.VK_RIGHT){ 
      tetrominoList.get(currentPiece).moveRight(); 
    }else if(e.getKeyCode() == KeyEvent.VK_LEFT){ 
     tetrominoList.get(currentPiece).moveLeft(); 
    }else if (e.getKeyCode() == KeyEvent.VK_UP){ 
     System.out.print("k"); 
     tetrominoList.get(currentPiece).rotate(); 
    } 


     return false; 
    } 

当我按向上箭头一次时，此代码返回“kk”。我如何配置java或我的电脑，使它只注册一个按键而不是两个？

编辑：这是我的临时解决方案

private class KeyHandler implements KeyEventDispatcher{ 

    int counter = 0; 
    public boolean dispatchKeyEvent(KeyEvent e) { 
     if(e.getKeyCode() == KeyEvent.VK_RIGHT){ 
      tetrominoList.get(currentPiece).moveRight(); 
    }else if(e.getKeyCode() == KeyEvent.VK_LEFT){ 
     tetrominoList.get(currentPiece).moveLeft(); 
    }else if (e.getKeyCode() == KeyEvent.VK_UP){ 
     counter++; 
     if(counter == 2){ 
      System.out.print("k"); 
      tetrominoList.get(currentPiece).rotate(); 
      counter = 0; 
     } 
    } 

Answer 1

我可能是错的，但看起来像你的代码处理既KEY_PRESSED和KEY_RELEASED事件。可能你应该检查一个KEY_TYPED事件，一旦发生，打印你的信。否则，您只能处理前两个事件中的一个。