how to set full screen dimensions

[valery]

I know how to set the size of a JFrame, e.g.:

Code:

 jframe.setSize(new Dimension(400, 600));

I would like to know how to set the full size of the screen?
what are the dimensions that I have to set?
thanks

[hardwired]

Dimension size = Toolkit.getDefaultToolkit().getScreenSize();