package gao;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Frame1 extends JFrame {   private JPanel contentPane;   private JToolBar jToolBar = new JToolBar();   private JButton jButton1 = new JButton();   private JButton jButton2 = new JButton();   private JButton jButton3 = new JButton();   private ImageIcon image1;   private ImageIcon image2;   private ImageIcon image3;   private JLabel statusBar = new JLabel();   private BorderLayout borderLayout1 = new BorderLayout();   //Construct the frame   public Frame1() {      enableEvents(AWTEvent.WINDOW_EVENT_MASK);      try {         jbInit();      }      catch(Exception e) {         e.printStackTrace();      }   }   //Component initialization   private void jbInit() throws Exception  {      image1 = new ImageIcon(gao.Frame1.class.getResource("openFile.gif"));      image2 = new ImageIcon(gao.Frame1.class.getResource("closeFile.gif"));      image3 = new ImageIcon(gao.Frame1.class.getResource("help.gif"));      //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));      contentPane = (JPanel) this.getContentPane();      contentPane.setLayout(borderLayout1);      this.setSize(new Dimension(400, 300));      this.setTitle("Frame Title");      statusBar.setText(" ");      jButton1.setIcon(image1);      jButton1.setToolTipText("Open File");      jButton2.setIcon(image2);      jButton2.setToolTipText("Close File");      jButton3.setIcon(image3);      jButton3.setToolTipText("Help");      jToolBar.add(jButton1);      jToolBar.add(jButton2);      jToolBar.add(jButton3);      contentPane.add(jToolBar, BorderLayout.NORTH);      contentPane.add(statusBar, BorderLayout.SOUTH);   }   //File | Exit action performed   public void jMenuFileExit_actionPerformed(ActionEvent e) {      System.exit(0);   }   //Help | About action performed   public void jMenuHelpAbout_actionPerformed(ActionEvent e) {   }   //Overridden so we can exit when window is closed   protected void processWindowEvent(WindowEvent e) {      super.processWindowEvent(e);      if (e.getID() == WindowEvent.WINDOW_CLOSING) {         System.exit(0);      }   }}