How to close a jframe without closing the main program

I'm creating a program to keep track of a list of DVD's. On the main page I have set up 2 JButtons. When the user clicks the one that says new, a new JFrame from another class comes up with fields to enter information about a new DVD. I'm trying to make a cancel button on this second frame work so that when one clicks the cancel button, it brings back up the main GUI and closes the new entry GUI. Code is below, I cant figure out how to do it.

Main GUI page

package dvdlibrary;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;


public class bootPage extends javax.swing.JFrame {

    /** Creates new form bootPage */
    public bootPage() {
        initComponents();
    }



    @SuppressWarnings("unchecked")

    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        getContentPane().setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());

        jLabel1.setText("DVD Library");
        getContentPane().add(jLabel1, new org.netbeans.lib.awtextra.AbsoluteConstraints(168, 11, -1, -1));

        jLabel2.setText("What would you like to do today?");
        getContentPane().add(jLabel2, new org.netbeans.lib.awtextra.AbsoluteConstraints(113, 70, -1, -1));

        jButton1.setText("Create Record");
        jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jButton1MouseClicked(evt);
            }
        });
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton1, new org.netb