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Asked: 2026-05-13T13:53:49+00:00

Sorry for really simple question, but I wasnt able to find anything in the

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Sorry for really simple question, but I wasnt able to find anything in the net, probably because I dont know the right terms to look for.

When you have a desktop application, there are many so called children windows: one for options, one for “about” and so on. How to make them in Java Swing (with NetBeans tools – optional)?

So far I just created another JFrame and on relevant event opened it the same way Main function launches, well, main JFrame. But there’s something wrong with this method: when I close child window via x in the upper right corner, whole program terminates as if I was closing the main window. This is probably because NetBeans auto generated code for x and I can find and change it somewhere… but still I have a feeling that there must be a simpler proper way to add children JFrames (or JPanels or whatever is it for children windows) 😉

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1 Answer

  1. Editorial Team

    … But there’s something wrong with this
    method: when I close child window via
    x in the upper right corner, whole
    program terminates as if I was closing
    the main window. …

    Well, I would say you are on the right path. Just make sure that you do the following for your child frames :

    frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

    Then closing the child windows won’t shut down your entire application.

    HTH ! 😉

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