Modifying code so that JCheckBox can be used instead of JComboBox

Question

Hello.
how can I modify the following code so that JCheckBox can be used instead of JComboBox?
Thanks.
import javax.swing.*;
import java.sql.*;
import java.awt.*;
import java.awt.event.*;
public class Exercise32_6 extends JApplet {
  private JComboBox jcboTableName = new JComboBox();
  private JTextArea jtaResult = new JTextArea();
  private JButton jbtShowContents = new JButton("Show Contents");
  private Statement stmt;
  public void init() {
    initializeDB();
    jbtShowContents.addActionListener(new java.awt.event.ActionListener() {
       public void actionPerformed(ActionEvent e) {
          jbtShowContents_actionPerformed(e);
    JPanel jPanel1 = new JPanel();
    jPanel1.add(new JLabel("Table Name"));
    jPanel1.add(jcboTableName);
    jPanel1.add(jbtShowContents);
    this.getContentPane().add(jPanel1, BorderLayout.NORTH);
    this.getContentPane().add(new JScrollPane(jtaResult), BorderLayout.CENTER);
  private void initializeDB() {
    try {
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
      System.out.println("Driver loaded");
      Connection connection = DriverManager.getConnection("jdbc:odbc:VideoLibrary");
      System.out.println("Database connected");
      stmt = connection.createStatement();
      DatabaseMetaData dbMetaData = connection.getMetaData();
      ResultSet rsTables = dbMetaData.getTables(null, null, null, new String[] {"TABLE"});
      System.out.print("User tables: ");
      while (rsTables.next()) {
        jcboTableName.addItem(rsTables.getString("TABLE_NAME"));
    catch (Exception ex) {
      ex.printStackTrace();
  private void jbtShowContents_actionPerformed(ActionEvent e) {
    String tableName = (String)jcboTableName.getSelectedItem();
    try {
      String queryString = "select * from " + tableName;
      ResultSet resultSet = stmt.executeQuery(queryString);
      ResultSetMetaData rsMetaData = resultSet.getMetaData();
      for (int i = 1; i <= rsMetaData.getColumnCount(); i++) {
        jtaResult.append(rsMetaData.getColumnName(i) + "    ");
      jtaResult.append("\n");
      while (resultSet.next()) {
        for (int i = 1; i <= rsMetaData.getColumnCount(); i++) {
          jtaResult.append(resultSet.getObject(i) + "     ");
        jtaResult.append("\n");
    catch (SQLException ex) {
      ex.printStackTrace();
  public static void main(String[] args) {
    Exercise32_6 applet = new Exercise32_6();
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setTitle("Exercise32_6");
    frame.getContentPane().add(applet, BorderLayout.CENTER);
    applet.init();
    applet.start();
    frame.setSize(380, 180);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
}

Answer 1

hello.
thanks for the reply. i want users of my video library system to be able to view CD/DVD/Game information by name, age category, type and year. Users should be able to click on a check box (e.g. view by name, age category, type or year) and press a button. What would happen then is that data from the Product table would appear in the text area.