JScrollBar em JPanel

JFrame frame = new JFrame(“New Conference”);

frame.setSize(600, 400);

frame.setLayout(new BorderLayout());

frame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);

JPanel pane = new JPanel();

pane.setLayout(null);

Insets insets = pane.getInsets();

JScrollPane scrollPane = new JScrollPane(pane,

JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,      JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

scrollPane.setViewportView(pane);

frame.add(scrollPane);
<pre><code>    pane.setSize(700 + insets.left + insets.right,
                  500 + insets.top + insets.bottom); 
   JScrollPane scroll = new JScrollPane(pane);
    
    Dimension size = spinner.getPreferredSize(); 
    spinner.setBounds(140 + insets.left, 35 + insets.top,
                 size.width, size.height);
    spinner.setToolTipText("Put here the number of Authors that you will introduce");
    size = jlabel13.getPreferredSize();
    jlabel13.setBounds(10 + insets.left, 35 + insets.top, size.width, size.height);
    size=tf2.getPreferredSize(); 
    tf2.setBounds(170 + insets.left, 596 + insets.top,
                 size.width, size.height + 10);
    tf2.setEditable(true);
    tf2.setEnabled(true);
    size=jlabel2.getPreferredSize();
    jlabel2.setBounds(125 + insets.left, 100 + insets.top, size.width,