public static void Main(String[] args) { Robot robot = new Robot(); size = Toolkit.GetDefaultToolkit().GetScreenSize(); JFrame frame = new JFrame("Ghost Mouse (tm)!"); JButton button = new JButton("Gho Ghost"); frame.GetContentPane().Add(button); button.AddActionListener(new CircleListener(robot)); frame.Pack(); frame.SetLocation((int)(size.Width - frame.GetWidth()) / 2, (int)(size.Height - frame.GetHeight()) / 2); frame.SetVisible(true); }