JPanel width

[Shannon Sims]

Does anyone know how to change the width of a panel? I tried using:

JPanel panel = new JPanel();
panel.setPreferredSize( new Dimension( 15, 15 ) );

however, this does not seem to change the dimension of my panel. I'm not sure if this makes any difference, but this panel is in a GridLayout. Perhaps I should be asking how do I change the dimension of the GridLayout? I have 3 rows and I would like the 1 row to be narrower than the last 2 rows.

Thanks for your help!
-Shannon

[Craig Wood]

Check the GridLayout api to see (in the first paragraph) that the grid is made so all cells are the same size. If you want a component to be shown at it's preferred size, like (15,15), add it to a JPanel and add the JPanel to the GridLayout. The JPanel will expand to fill the gird cell and allow the component to be shown at it's preferred size.

For a row of different size you'll have to try something else. Nested layouts would be a good starting place...

[Warren Dew]

You could always use the dreaded GridBagLayout.

[Pat Hays]

Another way:
you could use multiple JPanels which may be set PreferredSize, LayoutManager individually in your main Panel. it would be easer than using the dreaded GridBagLayout.

[Shannon Sims]

Thanks for everyones help! I will try using each one of your suggestions. Thanks again.