Gui is not showing when running program

Question

This source code compiles with no errors in Borland 9, but when I run it, the GUI doesn't show up. I'm clueless, here is the code:
import java.util.Properties;
import javax.mail.internet.*;
import javax.mail.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2003</p>
* <p>Company: </p>
* @author not attributable
* @version 1.0
public class SimpleSender{
  JPanel jPanel1 = new JPanel();
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JLabel jLabel4 = new JLabel();
  JTextField jTextField1 = new JTextField();
  JTextField jTextField2 = new JTextField();
  JTextField jTextField3 = new JTextField();
  JTextArea jTextArea1 = new JTextArea();
  public SimpleSender() {
    try {
      jbInit();
    catch(Exception e) {
      e.printStackTrace();
  private void jbInit() throws Exception {
    jTextArea1.setText("");
    jTextArea1.setLineWrap(true);
    jTextArea1.setWrapStyleWord(true);
    jTextArea1.setBounds(new Rectangle(9, 142, 382, 142));
    jTextField3.setText("");
    jTextField3.setBounds(new Rectangle(56, 99, 170, 22));
    jTextField2.setText("");
    jTextField2.setBounds(new Rectangle(40, 73, 183, 21));
    jTextField1.setText("");
    jTextField1.setBounds(new Rectangle(28, 43, 193, 21));
    jLabel4.setText("MESSAGE:");
    jLabel4.setBounds(new Rectangle(5, 126, 55, 15));
    jLabel3.setText("SUBJECT:");
    jLabel3.setBounds(new Rectangle(5, 102, 51, 15));
    jLabel2.setText("FROM:");
    jLabel2.setBounds(new Rectangle(7, 74, 34, 15));
    jLabel1.setText("TO:");
    jLabel1.setBounds(new Rectangle(9, 45, 20, 15));
    jButton2.setBounds(new Rectangle(88, 6, 77, 25));
    jButton2.setText("RECEIVE");
    jPanel1.setLayout(null);
    jButton1.setBounds(new Rectangle(8, 6, 73, 25));
    jButton1.setText("SEND");
    jButton1.addActionListener(new SimpleSender_jButton1_actionAdapter(this));
    jPanel1.add(jButton1, null);
    jPanel1.add(jButton2, null);
    jPanel1.add(jLabel1, null);
    jPanel1.add(jLabel4, null);
    jPanel1.add(jLabel3, null);
    jPanel1.add(jLabel2, null);
    jPanel1.add(jTextField1, null);
    jPanel1.add(jTextArea1, null);
    jPanel1.add(jTextField2, null);
    jPanel1.add(jTextField3, null);
  public void mail() throws Exception {
      Properties props = System.getProperties();
      // Setup mail server
      props.put("mail.smtp.host", "smtp-server.cfl.rr.com");
      // Get session
      Session session = Session.getDefaultInstance(props, null);
      // Define message
      MimeMessage message = new MimeMessage(session);
      // Set the from address
      message.setFrom(new InternetAddress(jTextField2.getText()));
      // Set the to address
      message.addRecipient(Message.RecipientType.TO,
                           new InternetAddress(jTextField1.getText()));
      // Set the subject
      message.setSubject(jTextField3.getText());
      // Set the content
      message.setText(jTextArea1.getText());
      // Send message
      Transport.send(message);
  void jButton1_actionPerformed(ActionEvent e) {
   try{
     mail();
   }catch(Exception ex){System.out.println("Failed");}
  public static void main(String args[]){
    new SimpleSender();
class SimpleSender_jButton1_actionAdapter implements java.awt.event.ActionListener {
  SimpleSender adaptee;
  SimpleSender_jButton1_actionAdapter(SimpleSender adaptee) {
    this.adaptee = adaptee;
  public void actionPerformed(ActionEvent e) {
    adaptee.jButton1_actionPerformed(e);
}

Answer 1

You need to have a JFrame to add your components to.
For example, make your class extend JFrame and set your main panel the ContentPane (assuming that all your components have been added to this panel).
public class SimpleSender extends JFRame {
this.setContentPane(JPanel1);
this.setVisible(true);
}