如何使用Jframe或JPanel粘贴JScrollPane的边框？

Question

I mean when I resize the frame to the left or right side the table automatically resizes itself but I want the same future when I resize it from down or up sides of the table. There is scroll for down and up but I want default size to be smaller.

In fact aJScrollPane.setSize() doesn't work, aJPanel.setSize() too. Can you help me?

Answer 1

If you are trying to restrict the number of rows the table displays by default, you can use JTable.setPreferredScrollableViewportSize() . For example for 10 rows you can do the following:

table.setPreferredScrollableViewportSize(
        new Dimension(table.getPreferredScrollableViewportSize().width, 
                10 * table.getRowHeight())); 

Note however, table rows can have variable heights. Also note, that hard-coding sizes in general can have side effects.