// --------------------refresh Window----------------------------------
private void neu(int xx, int yy) {
XX = xx;
YY = yy;
lastButtonY = 0;
lastButtonX = 0;
lastIcon = null;
firstClick = true;
window.getContentPane().removeAll();
baueButton();
window.revalidate();
}
public static void main(String[] args) {
JFrame frame = new JFrame("Network Tables");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
Display display = new Display();
frame.getContentPane().add(display);
frame.setLocation(0, 0);
frame.setSize(new Dimension(2000, 700));
frame.revalidate();
frame.repaint();
frame.setVisible(true);
}