how to maximize JFrame

How can I expand my JFrame so it occupies the entire display area of the monitor regardless of screen resolution?
confusednewguyAsked:
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hoomanvCommented:
instead of
    frame.setVisible(true);
use
    GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().setFullScreenWindow(frame);

you can also do
    frame.setUndecorated(true);
to be completely fullscreen

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kjetijoCommented:
By using a toolkit you can get the resolution of the screen... In one line you could just write:

setSize(Toolkit.getDefaultToolkit().getScreenSize());

This won't put you into a fullscreen-mode since you'll still have the borders around the JFrame, and you can still resize it. To get fullscreen, you use the command, as hoomanv allready said:

setUndecorated(true);
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