How to make JFrame default Maximum size state?

Hi all,
Is there any one know how to construct a JFrame that setMaximum when screen show?
another word mean the JFrame in Maximum state byb default.
regards,
elvis
scjp

Pheeeewww...
Don't people ever search the forum and read older posts?
Both the question and the partly wrong answer have appeared many, many times before.
In pre-1.4 Java you simply cannot maximize a frame.
The 'solution' is probably the best you can do, but it does not really maximize the frame:
* The user can still move/resize it.
* It does not take into account the size/position of the windows task bar or any other window manager palette windows.
There also has been a solution that uses the Robot class to simulate a click on the maximize button, but that's a real dirty trick, that won't work in applets and strongly depends on the exact layout of the window's decorations.
In Merlin you can programatically maximize a frame as well as find out the screen's insets (resulting from the task bar...)
Stephen

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How Do You Set a JFrame's Maximum Size?

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.
I tried it using a BoxLayout and even using null as a layout manager and can't get it to work. I heard that the other layout managers don't allow you to set the maximum size of a JFrame so that is why I tried it with the layouts that I did.

Darryl.Burke wrote:
Are you displaying your MyFrame as a top-level window or adding it to a parent JFrame with null or BoxLayout set?
Maybe the method you're looking for is setMaximizedBounds(Rectangle bounds)
You could also try this: setBackground(...) to something other than the default background and run your program again.
I'm at work and can't try ou any of my suggestions, so please post back if you get any progress.
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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.
I tried it using a BoxLayout and even using null as a layout manager and can't get it to work. I heard that the other layout managers don't allow you to set the maximum size of a JFrame so that is why I tried it with the layouts that I did.
I tried the following code (imported the necessary classes), but it does not work...
public class MyFrame extends JFrame
    public MyFrame()
        super("TestFrame");
        setLayout( new BoxLayout(getContentPane(), BoxLayout.X_AXIS) );
        setMaximumSize( new Dimension(400,200));
        setSize(300,150);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible( true );
}// end class

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.
I'm pretty much a novice in Swing, but I can tell you this: setLayout controls the layout of components added to the JFrame, not the layout of the frame with respect to its parent container.
Luck, Darryl

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Message was edited by: 946128 in respose to PhHein's comment

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How to make JFrame default Maximum size state?

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