Panle scrollabel

Question

I posted in the Java programming forum but was suggested I post here instead. I am trying to work out how to make a panel so it has a scroll bar. I was told that you add a jpanel to a JScrollPane but it doesn't seem to work.
I have created a simple program to test it out and when I resize the window no scroll bar appears. Can someone run my code and have a look for me? Any simple example would be greatly appreciated
llPane1.setBounds(40, 30, 360, 310);
        pack();
    /** Exit the Application */
    private void exitForm(java.awt.event.WindowEvent evt) {
        System.exit(0);
    public static void main(String args[]) {
        new scroll().setVisible(true);
    private javax.swing.JButton cancelButton;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JButton okButton;
}

Answer 1

well I have made a few changes and now a scroll bar always appears but it doesn't work! Can someone run my code below and tell me what I'm doing wrong. Would be much appreciated.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
public class scroll2 extends javax.swing.JFrame {
    /** Creates new form scroll */
    public scroll2() {
        initComponents();
          setSize(590,480);
    private void initComponents() {
        jScrollPane1 = new javax.swing.JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED );
        jPanel1 = new javax.swing.JPanel();
        okButton = new javax.swing.JButton();
        cancelButton = new javax.swing.JButton();
        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowClosing(java.awt.event.WindowEvent evt) {
                exitForm(evt);
        jPanel1.setLayout(null);
        okButton.setText("ok");
        jPanel1.add(okButton);
        okButton.setBounds(50, 20, 48, 26);
        cancelButton.setText("cancel");
        jPanel1.add(cancelButton);
        cancelButton.setBounds(210, 210, 72, 26);
        jScrollPane1.setViewportView(jPanel1);
        getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);
        pack();
    /** Exit the Application */
    private void exitForm(java.awt.event.WindowEvent evt) {
        System.exit(0);
    public static void main(String args[]) {
        new scroll2().show();
    private javax.swing.JButton cancelButton;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JButton okButton;
}