Why won't menu display?
package test;
import java.awt.BorderLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
publicclass TestFrameextends JFrame{
privatestaticfinallong serialVersionUID = 1;
private JPanel jContentPane =null;
private JSplitPane jSplitPane =null;
private JPanel jPanel =null;
private JPanel jPanel1 =null;
private JLabel jLabel =null;
private JLabel jLabel1 =null;
private JMenuBar jJMenuBar =null;
private JMenu jMenu =null;
private JMenuItem jMenuItem =null;
private JMenuItem jMenuItem1 =null;
private JMenu jMenu1 =null;
public TestFrame(){
super();
initialize();
}
privatevoid initialize(){
this.setSize(300, 200);
this.setJMenuBar(getJJMenuBar());
this.setContentPane(getJContentPane());
}
private JPanel getJContentPane(){
if (jContentPane ==null){
jContentPane =new JPanel();
jContentPane.setLayout(new BorderLayout());
jContentPane.add(getJSplitPane(), BorderLayout.CENTER);
}
return jContentPane;
}
private JSplitPane getJSplitPane(){
if (jSplitPane ==null){
jSplitPane =new JSplitPane();
jSplitPane.setDividerLocation(50);
jSplitPane.setLeftComponent(getJPanel());
jSplitPane.setRightComponent(getJPanel1());
}
return jSplitPane;
}
private JPanel getJPanel(){
if (jPanel ==null){
GridBagConstraints gridBagConstraints1 =new GridBagConstraints();
gridBagConstraints1.gridx = 0;
gridBagConstraints1.gridy = 0;
jLabel1 =new JLabel();
jLabel1.setText("left");
jPanel =new JPanel();
jPanel.setLayout(new GridBagLayout());
jPanel.add(jLabel1, gridBagConstraints1);
}
return jPanel;
}
private JPanel getJPanel1(){
if (jPanel1 ==null){
GridBagConstraints gridBagConstraints =new GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 0;
jLabel =new JLabel();
jLabel.setText("right");
jPanel1 =new JPanel();
jPanel1.setLayout(new GridBagLayout());
jPanel1.add(jLabel, gridBagConstraints);
}
return jPanel1;
}
private JMenuBar getJJMenuBar(){
if (jJMenuBar ==null){
jJMenuBar =new JMenuBar();
jJMenuBar.add(getJMenu());
}
return jJMenuBar;
}
private JMenu getJMenu(){
if (jMenu ==null){
jMenu =new JMenu();
jMenu.add(getJMenuItem());
jMenu.add(getJMenuItem1());
jMenu.add(getJMenu1());
}
return jMenu;
}
private JMenuItem getJMenuItem(){
if (jMenuItem ==null){
jMenuItem =new JMenuItem();
}
return jMenuItem;
}
private JMenuItem getJMenuItem1(){
if (jMenuItem1 ==null){
jMenuItem1 =new JMenuItem();
}
return jMenuItem1;
}
private JMenu getJMenu1(){
if (jMenu1 ==null){
jMenu1 =new JMenu();
}
return jMenu1;
}
}
