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Editorial Team
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Asked: 2026-05-23T00:43:19+00:00

I have a situation where a user enters a String and my code makes

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I have a situation where a user enters a String and my code makes a Jlabel for it and attempts to center it on a full screen JFrame/Pane. My problem is, to be able to accurately center it, I need to know its dimensions.

I need a way to figure out how long (wide) the JLabel should be so that it accomodates the length of the string and nothing more. I tried using the preferredSize() method that components have and it looked horrible (I passed a null value to let my UI determine the preferredSize). I know how to figure out the height that works (the size of the fontSize + 10px is usually good) but I can’t get the width.

I am using absolute positioning (no LayoutManager).

Thanks

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1 Answer

  1. Editorial Team

    I believe the actual width comes from getPreferredSize().getWidth() if you don’t set it beforehand. Try outputting the preferred size without setting it to null. With MigLayout when centering components, I normally use pref! to make the component as small as possible for all sizes and avoid wrapping, and then center it in the spacious parent container.

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