Getting the Screen Size in Java

Posted on: January 6th, 2010

Here’s a little exmple on how to get the screen size of one or multiple monitors in Java.

Get the size of the default screen:

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

If more than one screen is available, this example gets the size of each screen:

GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] gs = ge.getScreenDevices();

// Get size of each screen
for (int i=0; i<gs.length; i++) {
DisplayMode dm = gs[i].getDisplayMode();
int screenWidth = dm.getWidth();
int screenHeight = dm.getHeight();
}

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