Unable to display ScrollPane when added to a Panel

[sharath kv]

Hi,
When I add a ScrollPane directly to a container,using the getContentPane().add(sp),where sp is the ScrollPane, the ScrollPane is visible. But when I add the ScrollPane onto a Panel and then add that panel to a container,I the ScrollPane is not visible.

[Eugene Ho]

Post some code

[Nathan Pruett]

Because the content pane uses BorderLayout and you are adding it to the center, the scrollpane takes up all available space. JPanel by default uses FlowLayout, which displays components as they are added according to their preferred size. An empty scrollpane has no preferred size, so it's there, it just has a size of 0, so you can't see it.