Getting the size on the screen

Question

I making video games, its a good idea to make the games
playable on any size on screen or montior. Im trying to
do that. What Im trying to do here is: when the game starts
the program check what size screen the computer has, and
then open a window to that size. Does anyone know how to do this?
Im thinking its something like this:
ScreenDevice sd = ScreenDevice.getDefaultScreenDevice();
// and then on from there..
Can anyone help me out?
Thanks

Answer 1

this is the most correct way of doing it :-
GraphicsEnvironment ge = GraphicsEnvironment.getLocalEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice(); //this line uses the primary monitor only
//you could modify it to take into account multi-monitor systems
DisplayMode dm = gd.getDisplayMode();
dm.getWidth();
dm.getHeight();however, you can also do this :-
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
d.getWidth();
d.getHeight();all this info is available in the javadoc ;p