how to customize and display the frame window at center of my screen in java swing?

Question

Hi I am developing an desktop application using swing when i am executing the frame window it is displaying at the left side bottom of my screen can i customize that and display at in center of the screen?

actually i cant able to edit the generated code confused to insert this code — Suresh, Feb 18 '14 at 09:20
yes i am using gui builder am setting all the properties through that only — Suresh, Feb 18 '14 at 09:23

Paul Samsotha · Accepted Answer · 2014-02-18T09:32:31.453

3

"yes i am using gui builder"

Just put setLocationRelativeTo(null) after initComponents(), in the constructor.

public class MyFrame extends JFrame {
    public MyFrame() {
        initComponents();
        setLocationRelativeTo(null);
    }
}

JFrame as a subclass of Window inherits Window methods. The API can be seen here The method used above is listed as follows

public void setLocationRelativeTo(Component c) - Sets the location of the window relative to the specified component according to the following scenarios.
If the component is null, or the GraphicsConfiguration associated with this component is null, the window is placed in the center of the screen.

edited Feb 18 '14 at 09:32

answered Feb 18 '14 at 09:25

Paul Samsotha

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For frame positioning, you cannot go by `setLocationByPlatform(true)`. See [this answer](http://stackoverflow.com/a/7143398/418556) for demo. ;) – Andrew Thompson Feb 18 '14 at 10:03
@AndrewThompson is your comment worded correctly? I'm a bit confused by it and its implication :/ – Paul Samsotha Feb 18 '14 at 10:08
Well, it presumed, *"No **don't** set it in the middle of the screen, that looks so 'Splash Screenish'! Instead.."* was understood. – Andrew Thompson Feb 18 '14 at 11:00
@AndrewThompson _"you cannot go by setLocationByPlatform(true)"_ .. Did you mean "you **can**" ? – Paul Samsotha Feb 18 '14 at 11:11
1

Oh, sorry, *"cannot go by"* means *"cannot pass up"* or *"cannot do without"*. :P – Andrew Thompson Feb 18 '14 at 11:52

score 0 · Answer 2 · edited Feb 18 '14 at 09:50

Following Code will provide you Width and Height of Your Screen

Toolkit toolkit=Toolkit.getDefaultToolkit();

toolkit.getScreenSize().width

toolkit.getScreenSize().height

Then Using This Height and Width You can set where to position Your frame with following function

this.setLocation(int x, int y)

//first variable x is position relative to left top of ur screen in horizontal direction

// second variable y is position relative to left top in vertical direction

how to customize and display the frame window at center of my screen in java swing?

2 Answers2