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Viewing menu items in menubars

Posted on 2003-11-26
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Last Modified: 2010-03-31
I have created a methods to create a menubar.  When I put it on the frame I can see the menu titiles, but when I click on the menus it does not drop down to display the menu items for the menus.  I sort of followed a tutorial that I saw on the sun website but it has not helped me.  Any help would be nice. Also I am trying to upload xml files in my jframe so if anyone can give me some directions on what would be the best way to go about it that would help as well.  Thanks in advance.  Here is my code:

public JMenuBar xmlMenu() {
            
            JMenuBar menuBar;
            JMenu file, operation;
            JMenuItem open, save, exit, query;
            
            menuBar = new JMenuBar();
            
            file = new JMenu("File");
            file.setMnemonic(KeyEvent.VK_A);
            file.getAccessibleContext().setAccessibleDescription(
                "The only menu in this program that has menu items");
            menuBar.add(file);
            
            open = new JMenuItem("open");
            open.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_1, ActionEvent.ALT_MASK));
        open.getAccessibleContext().setAccessibleDescription(
                "This doesn't really do anything");
            open.addActionListener(this);
            file.add(open);
            
            save = new JMenuItem("save");
            save.addActionListener(this);
            file.add(save);
            exit = new JMenuItem("exit");
            exit.addActionListener(this);
            file.add(exit);
            
            operation = new JMenu("Operations");
            menuBar.add(operation);
            
            query = new JMenuItem("Query");
            operation.add(query);
            
            return menuBar;
            
      }//end JMenuBar
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Question by:janiab
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8 Comments
 
LVL 3

Expert Comment

by:InNoCenT_Ch1ld
ID: 9829018
try this and see if there any different? ;)

public JMenuBar xmlMenu() {
         
          JMenuBar menuBar;
          JMenu file, operation;
          JMenuItem open, save, exit, query;
         
          menuBar = new JMenuBar();
         
          file = new JMenu("File");
          file.setMnemonic(KeyEvent.VK_A);
          file.getAccessibleContext().setAccessibleDescription(
                "The only menu in this program that has menu items");
         
         
          open = new JMenuItem("open");
          open.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_1, ActionEvent.ALT_MASK));
          open.getAccessibleContext().setAccessibleDescription(
                "This doesn't really do anything");
          open.addActionListener(this);
          file.add(open);
         
          save = new JMenuItem("save");
          save.addActionListener(this);
          file.add(save);

          exit = new JMenuItem("exit");
          exit.addActionListener(this);
          file.add(exit);
         
          operation = new JMenu("Operations");
         
         
          query = new JMenuItem("Query");
          operation.add(query);

         menuBar.add(file);
          menuBar.add(operation);
         
          return menuBar;
         
     }//end JMenuBar
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 9829039
How do you add the menu bar?

frame.setJMenuBar(xmlMenu());

?
0
 
LVL 3

Expert Comment

by:InNoCenT_Ch1ld
ID: 9830248
>>How do you add the menu bar?

janiab, post your code here.

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Author Comment

by:janiab
ID: 9839547
I added the menu bar with this line of code
setJMenuBar(xmlMenu());

this is my entire code that I used.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.table.*;
import java.util.*;
import java.text.*;

/**
 * CS4440:  
 *
 * <PRE>
 * Enter a brief description here
 *
 * Revisions:  1.0  Feb 21, 2003
 *                  Created class XMLClient
 * </PRE>
 *
 * @author <A HREF="mailto:gte284k@prism.gatech.edu">Janet Nicole Abdul-Karim</A>
 * @author <A HREF="mailto:gte">Zaheer Hooda</A>
 * @author <A HREF="mailto:gte">James Voerg</A>
 * @author <A HREF="mailto:gte"></A>
 * @version Version 1.0, November, 2003
 */


class XMLClient extends JFrame implements MouseListener, ActionListener {
      
      
      Panel mainPanel;
      Container frameContainer;
      JFileChooser xmlFile;
      JTextArea output;
      JScrollPane outputPane;
      
      /**
       * Constructor
       */
      public XMLClient() {
            
            super("XMLClient");
            
            /**
             * Text Area
             */
            output = new JTextArea(5, 30);
        output.setEditable(false);
        outputPane = new JScrollPane(output);
      
            /**
             * Panel setup
             */                  
            mainPanel = new Panel(new BorderLayout());
            //mainPanel.setOpaque(true);
            mainPanel.add(outputPane, BorderLayout.CENTER);
            /**
             * Container setup
             */
            frameContainer = getContentPane();
            frameContainer.add(mainPanel, BorderLayout.CENTER);            
            this.setContentPane(frameContainer);
            
            xmlFile = new JFileChooser();
            /**
             * closes the frame
             */
            this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            
            /**
             *add JMenuBar
             */
             setJMenuBar(xmlMenu());
             
            
      }// end constructor
      
      public JMenuBar xmlMenu() {
            
            JMenuBar menuBar;
            JMenu file, operation;
            JMenuItem open, save, exit, query;
            
            menuBar = new JMenuBar();
            
            file = new JMenu("File");
            file.setMnemonic(KeyEvent.VK_A);
            file.getAccessibleContext().setAccessibleDescription(
                "The only menu in this program that has menu items");
            menuBar.add(file);
            
            open = new JMenuItem("open");
            open.setAccelerator(KeyStroke.getKeyStroke(
                KeyEvent.VK_1, ActionEvent.ALT_MASK));
        open.getAccessibleContext().setAccessibleDescription(
                "This doesn't really do anything");
            open.addActionListener(this);
            file.add(open);
            
            save = new JMenuItem("save");
            save.addActionListener(this);
            file.add(save);
            exit = new JMenuItem("exit");
            exit.addActionListener(this);
            file.add(exit);
            
            operation = new JMenu("Operations");
            menuBar.add(operation);
            
            query = new JMenuItem("Query");
            operation.add(query);
            
            return menuBar;
            
      }//end JMenuBar
      
      /**
       * frame display
       */
      
       public void createAndShowGUI() {
             
             setDefaultLookAndFeelDecorated(true);
             setSize(450, 260);
        setVisible(true);
             
       }//end createAndShowGUI
      
      
      public void actionPerformed(ActionEvent e) {
            
      }//end actionPerformed
      
      /**
       *MouseListener Interface
       */
      
    public void mouseClicked(MouseEvent e){

    }
   
    public void mousePressed(MouseEvent e) {}
    public void mouseExited(MouseEvent e) {}
    public void mouseEntered(MouseEvent e) {}
    public void mouseReleased(MouseEvent e) {}
   
    public static void main (String argv[]) {
          
          XMLClient test = new XMLClient();
          test.createAndShowGUI();
          
          }//end main
      
 
}//end class
 
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Accepted Solution

by:
janiab earned 0 total points
ID: 9844050
I seem to have found out my problem.  In my code I was mixing awt components with swing components.  I was using Panel in stead of JPanel.  Once I changes Panel to JPanel that resolved my problem.  Thanks for your help.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 9845544
No problem - should have spotted that myself!
0
 
LVL 3

Expert Comment

by:InNoCenT_Ch1ld
ID: 9847949
; )
0

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