@Override
    public void keyReleased(KeyEvent e) {
        int keyCode = e.getKeyCode();
        if (keyCode == keyUp)
            pressingKey.remove(Key.UP);
        else if (keyCode == keyDown)
            pressingKey.remove(Key.DOWN);
        else if (keyCode == keyLeft)
            pressingKey.remove(Key.LEFT);
        else if (keyCode == keyRight)
            pressingKey.remove(Key.RIGHT);
        else if (keyCode == keyOK)
            pressingKey.remove(Key.OK);
        else if (keyCode == keyCancel)
            pressingKey.remove(Key.CANCEL);
        else
            ;
    }