How to increase the size of JScrollPane pane?

问题

  scrollPane = new JScrollPane(table);
  panel1.add( scrollPane,BorderLayout.CENTER );

Is there a way I can make the scrollPane bigger (wider) ?

回答1:

JScrollPane scrollPane = new JScrollPane(table, 
                                        JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
                                        JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
JScrollBar bar = scrollPane.getVerticalScrollBar();
bar.setPreferredSize(new Dimension(40, 0));

This works. I figured it out.

回答2:

When using Border Layout you don't control the size of the somponents in it Consider using GridBag Layout.

回答3:

The JScrollPane is as big as the element it holds. You should make those element(s) wider.

Also, there is the setSize()-method. But you'll most likely want to use the setPreferredSize()-method as mentioned by mre.

来源：https://stackoverflow.com/questions/6347768/how-to-increase-the-size-of-jscrollpane-pane