Multiple JPanels, non-working JScrollPane

Question

So, I'm trying to make a scrollbar with multiple text areas, but I can't seem to get the scroll bar to appear when there's overflow. When I try, [this is an example of what I get|http://www.fileden.com/files/2010/3/9/2788777//scrollpane.png].
Here is my code:
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.KeyboardFocusManager;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.ScrollPaneConstants;
public class SSCCE
     public SSCCE()
          JFrame f = new JFrame();
          JPanel p[] = {new JPanel(),new JPanel()};
          JScrollPane pane = new JScrollPane(p[0],ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
          p[0].setLayout(new GridBagLayout());
          for(int i = 0 ; i < 16; i++)
               addItem(p[0],createTextArea(""+i),0,i,GridBagConstraints.WEST);
          p[1].add(new JButton("Click"));
          pane.setBorder(BorderFactory.createLineBorder(Color.BLACK));
          f.add(pane,BorderLayout.NORTH);
          f.add(p[1],BorderLayout.SOUTH);
          f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          f.setSize(500,300);
          f.setLocationRelativeTo(null);
          f.setVisible(true);
     private JTextArea createTextArea(String text)
          JTextArea t = new JTextArea(text,1,10);
          t.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, null);
          t.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, null);
          return t;
     private static void addItem(JPanel p, JComponent c, int column, int row, int align)
          GridBagConstraints gc = new GridBagConstraints();
          gc.fill = GridBagConstraints.NONE;
          c.setFont(new Font("Courier New",Font.PLAIN,12));
          gc.gridx = column;
          gc.gridy = row;
          gc.gridwidth = 1;
          gc.gridheight = 1;
          gc.anchor = align;
          gc.weightx = 100;
          gc.weighty = 100;
          p.add(c, gc);
          p.validate();
     public static void main(String[] args)
          new SSCCE();
}What do I do to get the scroll bar to appear?

Answer 1

preferredSize worked. Thanks guys. :)
Edit: BorderLayout.CENTER also worked. Thanks.
Edited by: ElectrifiedBrain on Aug 14, 2010 12:57 AM