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Thread: how to set my frame in the middle of the screen

  1. #1
    Java kindergarten chronoz13's Avatar
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    Default how to set my frame in the middle of the screen

    sorry for posting lots of threads, i dont intend to spam but i need to finish this one as soon as possible, because i have to make 3 programs for this semester in 2 different subjects, i need urgent guides and answers..

    well for this one... how can i display this frame in the middle of the sreen?

    ------- what ever the size would be.. i want to display this frame in the middle of the screen in different monitor (screen), i dont want to set it just by calculating the dimension of MY monitor(screen), "what if i run this in our school..? those monitor's dimension is ranging from 20 someting or regular CRT monitor screen, i have 17 inch here... so i need some answers on how can i display this in the center of different monitors...

    public class InventoryServer extends JFrame {
     
        private Toolkit toolkit;
        private Dimension windowSize;
        private JPanel panelSample;
        private Image icon;
     
        public InventoryServer() {
     
            toolkit = Toolkit.getDefaultToolkit();
            icon = new ImageIcon("c:/pics/mercuryLogo.jpg").getImage().getScaledInstance(300, 300, 0);
            windowSize = toolkit.getScreenSize();
            panelSample = new JPanel();
        }
     
        public void setComponents(Container cont) {
     
     
        }
     
        public void initializeServer() {
     
            this.setLocationByPlatform(true);
            this.setIconImage(icon);
            this.setTitle("Inventory Server");
            this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            this.setComponents(this.getContentPane());
            this.setBounds(0, 0, 400, 500);
            this.setVisible(true);
        }
     
        public static void main(String[] args) {
     
            SwingUtilities.invokeLater(new Runnable() {
     
                InventoryServer iS = new InventoryServer();
     
                public void run() {
     
                    iS.initializeServer();
                }
            });
        }
    }


  2. #2
    Super Moderator helloworld922's Avatar
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    Default Re: how to set my frame in the middle of the screen

    You can get the monitor resolution using Toolkit.getDefaultToolkit().getScreenSize() to get the monitor resolution (returns a Dimension object). I'm not sure how this type of a program would work, though if you had multiple monitors hooked up to the same computer.

  3. The Following User Says Thank You to helloworld922 For This Useful Post:

    chronoz13 (January 21st, 2010)

  4. #3
    Java kindergarten chronoz13's Avatar
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    Default Re: how to set my frame in the middle of the screen

    ahmm world... how bout this.. method..

    setLocationRelativeTo(null)... when i used this one... its makes the frame centered in the monitor screen...?

    is this fine...?

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    rinoabm (December 29th, 2011)

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    Default Re: how to set my frame in the middle of the screen

    Definitely... using the method setLocationRelativeTo(null) will set the position of your frame at the center.

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