Java swing setMaximumSize not working [duplicate]

Question

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setMaximumSize not working in java

I've having trouble with my JFrame subclass. I need to set a Maximum height.

But setMaximumSize does not work. It seems that's a bug in java (setMinimumSize works). How could prevent a JFrame from getting higher than a given height ?

Answer 1

In my experience, setMinimumSize and setMaximumSize are not reliable - they may work in some situations, but often not in others

The best solution is to use a ComponentListener, implement componentResized, and enforce the min / max size that way

Answer 2

Use this instead/as well:

setPreferredSize(new Dimension(width, height));

In my experience setPreferredSize(Dimension) takes preference and always works.

I usually use all of them anyway: setMinimumSize(), setMaximumSize(), setPreferredSize() and then setSize() as well