How to set an empty JPanel to maximum size?

Hello!
I created class extends JFrame.
I want this maximum size so I set the minimum size as screen size:
setSize(screenWidth,screenHeight);
Now I added an empty JPanel,
and I want it to be the maximum size.
But the problem is - I don't know what is the maximum of the current size without the frame borders. I mean, after set it to maximum size (I don't know how),
I could get the width and height of the current size without the frame borders by:
frame.getContentPane().getSize();
In conclusion, I want to set an empty JPanel to maximum size and get JFrame size without the frame borders.
Thanks!

800512 wrote:
Now I added an empty JPanel,
and I want it to be the maximum size.Define "maximum size". You want it to fill the screen or you want it to be the maximum size inside its container (JFrame in this case)?
You cannot make a component break out of its container, that's for sure. So assuming you want the component to grow to the maximum size inside its container, that should already happen when you add the component to the CENTER position of the JFrame's container. By default it has a BorderLayout.

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Reposted from
{color:#0000ff}http://forum.java.sun.com/thread.jspa?threadID=5236259{color}
@OP:
When you repost a topic, please always provide a link to the previous post so people can check what suggestions were already offered (and didn't solve the problem).
Better still, give a short summary of the advice you have already tried.
I suggested setBackground(...) so you can see whether your MyFrame is actually occupying the entire real estate of the window. Looks as if trying it out (which I would have done for you if I'd been at home, where my JDK is) would have been too much effort for you.
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Can someone show me a quick example? The JFrame can be empty, I just want to know how to set it's maximum size. I tried using setMaximumSize() and it doesn't work for some reason but setMinimumSize() works fine.
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How to set an empty JPanel to maximum size?

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