private static Dimension ScreenSize = Toolkit.getDefaultToolkit().getScreenSize();
ScreenSize.setSize(ScreenSize.getWidth() / ScaleWidth, ScreenSize.getHeight() / ScaleHeight);
Framework fw = new Framework();
fw.setSize((int) (ScreenSize.getWidth()), (int) (ScreenSize.getHeight()));
JPanel panel = new JPanel();
panel.setPreferredSize(ScreenSize.getWidth() * 2 / 3, ScreenSize.getHeight() * 2 / 3)