// KeyListener zum Einloggen
        uNeingabe.addKeyListener(new KeyListener() {

            @Override
            public void keyPressed(KeyEvent e) {
                switch (e.getKeyCode()) {
                case KeyEvent.VK_ENTER:
                    try {
                        loginListener.login();
                    } catch (InterruptedException e1) {

                        e1.printStackTrace();
                    }
                    break;
                default:
                    break;
                }
            }

            @Override
            public void keyReleased(KeyEvent e) {
            }

            @Override
            public void keyTyped(KeyEvent e) {
            }

        });