Question

3. For this week’s assignment, you are asked to modify the above Java program to include the following: - When the user clicks on the help menu, a drop-down list will appear with an item called About, then when the user clicks on it, the window will show some instructions about the functionality of the menu, e.g, what the edit menu does, etc. - When the user clicks on the File menu, a drop-down list will appear with one item called Show Picture, and when the user clicks on it, a picture of your choice will appear

import javax.swing.*;

public class MenuFrame extends JFrame {

public MenuFrame() {

setTitle("Menu Frame");

setSize(500, 500);

MenuListenerExample myMenu = new MenuListenerExample();

setJMenuBar(myMenu);

setLayout(null);

add(myMenu.textArea);

}

public static void main(String[] args) {

MenuFrame frame = new MenuFrame();

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

}

}

import javax.swing.*;

import java.awt.event.*;

public class MenuListenerExample extends JMenuBar {

JMenu fileMenu, editMenu, helpMenu;

JMenuItem cut, copy, paste, selectAll,about,showPicture;

JTextArea textArea,textArea1;

public MenuListenerExample() {

cut = new JMenuItem("cut");

copy = new JMenuItem("copy");

paste = new JMenuItem("paste");

selectAll = new JMenuItem("selectAll");

about=new JMenuItem("about");

showPicture=new JMenuItem("show");

textArea = new JTextArea();

textArea1 = new JTextArea();

cut.addActionListener(new MenuAction());

copy.addActionListener(new MenuAction());

paste.addActionListener(new MenuAction());

selectAll.addActionListener(new MenuAction());

about.addActionListener(new MenuAction());

showPicture.addActionListener(new MenuAction());

fileMenu = new JMenu("File");

editMenu = new JMenu("Edit");

helpMenu = new JMenu("Help");

editMenu.add(cut);

editMenu.add(copy);

editMenu.add(paste);

editMenu.add(selectAll);

helpMenu.add(about);

fileMenu.add(showPicture);

add(fileMenu);

add(editMenu);

add(helpMenu);

textArea.setBounds(30, 30, 430, 400);

textArea1.setBounds(30, 30, 430, 400);

}

private class MenuAction implements ActionListener {

public void actionPerformed(ActionEvent e) {

if (e.getSource() == cut) {

textArea.cut();

}

if (e.getSource() == paste) {

textArea.paste();

}

if (e.getSource() == copy) {

textArea.copy();

}

if (e.getSource() == selectAll) {

textArea.selectAll();

}

if (e.getSource() == about) {

JFrame frame = new JFrame("about");

textArea1.setText("This is simple Notepad Application\n"+"1.File : It has show picture option\n"

+"Edit : It has three option cut,copy,selectall\n"+

"help : It has about option which show function\n");

textArea1.setEditable(false);

frame.add(textArea1);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

}

Replace if statements and use the switch statement

i need output show pictures in file menu

Image path is

C:\\Users\\DGL2\\Desktop\\3840.jpg_wh860.jpg

Answer 1

package menu;

import javax.swing.*;

public class MenuFrame extends JFrame
{
   private static final long serialVersionUID = 1L;

   public MenuFrame()
   {
       setTitle("Menu Frame");
       setSize(500, 500);
       MenuListenerExample myMenu = new MenuListenerExample();
       setJMenuBar(myMenu);
       setLayout(null);
       add(myMenu.textArea);
   }

   public static void main(String[] args)
   {
       MenuFrame frame = new MenuFrame();
       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       frame.setVisible(true);
       frame.setLocationRelativeTo(null);
   }
}

-------------------------------------------------------------------------------------------------------------

package menu;

import javax.swing.*;

import java.awt.event.*;

public class MenuListenerExample extends JMenuBar
{
   private static final long serialVersionUID = 1L;
   JMenu fileMenu, editMenu, helpMenu;
   JMenuItem cut, copy, paste, selectAll,about,showPicture;
   JTextArea textArea,textArea1;
   JFrame frame;
  
   public MenuListenerExample()
   {
       cut = new JMenuItem("cut");
       copy = new JMenuItem("copy");
       paste = new JMenuItem("paste");
       selectAll = new JMenuItem("selectAll");
       about=new JMenuItem("about");
       showPicture=new JMenuItem("Show Picture");
       textArea = new JTextArea();
       textArea1 = new JTextArea();

       cut.addActionListener(new MenuAction());
       copy.addActionListener(new MenuAction());
       paste.addActionListener(new MenuAction());
       selectAll.addActionListener(new MenuAction());
       about.addActionListener(new MenuAction());
       showPicture.addActionListener(new MenuAction());

       fileMenu = new JMenu("File");
       editMenu = new JMenu("Edit");
       helpMenu = new JMenu("Help");

       editMenu.add(cut);
       editMenu.add(copy);
       editMenu.add(paste);
       editMenu.add(selectAll);
       helpMenu.add(about);
       fileMenu.add(showPicture);
       add(fileMenu);
       add(editMenu);
       add(helpMenu);
      
       textArea.setBounds(30, 30, 430, 400);
       textArea1.setBounds(30, 30, 430, 400);
   }
   private class MenuAction implements ActionListener
   {
       public void actionPerformed(ActionEvent e)
       {
           if (e.getSource() == cut)
           {
               textArea.cut();
           }
           if (e.getSource() == paste)
           {
               textArea.paste();
           }
           if (e.getSource() == copy)
           {
               textArea.copy();
           }
           if (e.getSource() == selectAll)
           {
               textArea.selectAll();
           }
           if (e.getSource() == about)
           {
               frame = new JFrame("About");
               textArea1.setText("This is simple Notepad Application\n"+
               " 1.File : It has show picture option\n"
                       +" 2. Edit : It has three option cut,copy,selectall\n"+
                       " 3. help : It has about option which show function\n");
               textArea1.setEditable(false);
               frame.add(textArea1);
               frame.pack();
               frame.setVisible(true);
               frame.setLocationRelativeTo(null);
              
           }
           if (e.getSource() == showPicture)
           {
               frame = new JFrame("My Image");
               JLabel img = new JLabel();
               img.setIcon(new ImageIcon("F:/OnlinePrograms/tiger.jpg"));
               frame.add(img);
               frame.pack();
               frame.setVisible(true);
               frame.setLocationRelativeTo(null);
           }
       }
   }
}

Note: Highlighted part is the modified code

Sample Output: