Modifying code so that JCheckBox can be used instead of JComboBox
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.*;
publicclass Exercise32_6extends JApplet{
private JComboBox jcboTableName =new JComboBox();
private JTextArea jtaResult =new JTextArea();
private JButton jbtShowContents =new JButton("Show Contents");
private Statement stmt;
publicvoid init(){
initializeDB();
jbtShowContents.addActionListener(new java.awt.event.ActionListener(){
publicvoid 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);
}
privatevoid 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();
}
}
privatevoid 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();
}
}
publicstaticvoid 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);
}
}
