在java keyhandler中降低鍵盤靈敏度？

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; 
    } 

當我按向上箭頭一次時，此代碼返回「kk」。我如何配置java或我的電腦，使它只註冊一個按鍵而不是兩個？

編輯：這是我的臨時解決方案

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

我可能是錯的，但看起來像你的代碼處理既KEY_PRESSED和KEY_RELEASED事件。可能你應該檢查一個KEY_TYPED事件，一旦發生，打印你的信。否則，您只能處理前兩個事件中的一個。