JScrollPane中的JList

Question

I have a JList in a JScrollPane and want the scroll pane to behave like it would not exists (concerning preferredSize ) when the list contains less than 10 items. As soon as the list contains at least 10 items I want the scroll pane to have a preferred size like the list would have with 10 items. How is that possible?

Answer 1

Use JList.setVisibleRowCount(int) . That will set a preferred height for the list that the scroll pane will attempt to honor.