How to set JFrame to appear centered regardless of monitor resolution

Question

While working with Java  I find it hard to position my main window in the center of the screen when I start the application   Is there any way I can do that  It doesn t have to be vertically centered  horizontal alignment is the more important goal for me  But vertical alignment is also welcome

User · Answer

In Net Beans GUI - go to jframe  right click on jFrame in Navigator  properties  under code  form size policy property select Generate Resize Code  In the same window  Untick Generate Position and tick Generate Size and Center   Enjoy programming  Ramana

User · Answer

If you explicitly setPreferredSize new Dimension X  Y    then it is better to use   setLocation dim width 2-this getPreferredSize   width 2  dim height 2-this getPreferredSize   height 2

User · Answer

i am using NetBeans IDE 7 2 1 as my developer environmental and there you have an option to configure the JForm properties   in the JForm Properties go to the  Code  tab and configure the  Generate Center   you will need first to set the Form Size Policy to  Generate Resize Code

User · Answer

As simple as this     setSize 220  400   setLocationRelativeTo null       or if you are using a frame then set the frame to   frame setSize 220  400   frame setLocationRelativeTo null       For clarification  from the docs      If the component is null  or the GraphicsConfiguration associated with this component is null  the window is placed in the center of the screen

User · Answer

You can use this method  which allows the JFrame to be centered and full screen at the same time   yourframe setExtendedState JFrame MAXIMIZED BOTH

User · Answer

Just click on form and go to JFrame properties  then Code tab and check Generate Center

User · Answer

I always did it in this way   Dimension dim   Toolkit getDefaultToolkit   getScreenSize    this setLocation dim width 2-this getSize   width 2  dim height 2-this getSize   height 2     where this is the JFrame involved

User · Answer

I am using NetBeans IDE 7 3 and this is how I go about centralizing my JFrame Make sure you click on the JFrame Panel and go to your JFrame property bar click on the Code bar and select Generate Center check box

User · Answer

Use setLocationRelativeTo null   This method has a special effect when you pass it a null   According to the Javadoc      If the component is null  or the GraphicsConfiguration associated with this component is null  the window is placed in the center of the screen    This should be done after setting the size or calling pack    but before setting it visible  like this   frame pack    frame setLocationRelativeTo null   frame setVisible true

User · Answer

You can call JFrame setLocationRelativeTo null  to center the window  Make sure to put this before JFrame setVisible true

User · Answer

If you use NetBeans  simply click on the frame on the design view  then the code tab on its properties  Next  check  Generate Center   That will get the job done

[java] How to set JFrame to appear centered, regardless of monitor resolution?

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