Answered! Code Completion 11.103 Add listeners to menu Add the menu items shown below….

Code Completion 11.103 Add listeners to menu

Add the menu items shown below.

Add a listener to the second menu item that turns the content pane yellow.

Here is a sample program output:

MenuFrameviewer Eile Edit About Open File Turn Background Yellow O X

Complete the following code:

import javax.swing.JFrame;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class MenuFrame extends JFrame
{
   private JMenuBar menuBar;
   private JMenu fileMenu;
   private JMenu editMenu;
   private JMenu aboutMenu;

   public MenuFrame()
   {
      menuBar = new JMenuBar();
      fileMenu = new JMenu("File");
      fileMenu.setMnemonic('F');
      editMenu = new JMenu("Edit");
      aboutMenu = new JMenu("About");

      // TODO: Add menu items

      // TODO: Add listener to second menu item

      setJMenuBar(menuBar);
      menuBar.add(fileMenu);
      menuBar.add(editMenu);
      menuBar.add(aboutMenu);
   }
}

The following class is used to check your work:

import javax.swing.JFrame;

public class MenuFrameViewer
{
   public static void main(String[] args)
   {
      MenuFrame frame = new MenuFrame();
      frame.setBounds(50,50,400,200);
      frame.setTitle("MenuFrameViewer");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setVisible(true);
   }
}

Expert Answer

MenuFrameViewer.java

import javax.swing.JFrame;

public class MenuFrameViewer { //Begin Class

public static void main(String[] args) { //Begin Main
MenuFrame frame = new MenuFrame();
frame.setBounds(50,50,400,200);
frame.setTitle(“MenuFrameViewer”);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
} //End Main
} //End Class

MenuFrame.java

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.io.File;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;

public class MenuFrame extends JFrame { //Begin Class

private final JMenuBar menuBar;
private final JMenu fileMenu;
private final JMenu editMenu;
private final JMenu aboutMenu;

public MenuFrame() { //Begin Constructor

menuBar = new JMenuBar();

fileMenu = new JMenu(“File”);
JMenuItem openFile = new JMenuItem(“Open File”);
JMenuItem turnBGYellow = new JMenuItem(“Turn Background Yellow”);
fileMenu.add(openFile);
fileMenu.add(turnBGYellow);

openFile.addActionListener((ActionEvent ae) -> {
JFileChooser openMenu = new JFileChooser();
File fileOpen = new File(“”);
openMenu.setCurrentDirectory(new File(“C:\”));
openMenu.setDialogTitle(“Open a File”);
if (openMenu.showOpenDialog(openFile)
== JFileChooser.APPROVE_OPTION) {
fileOpen = openMenu.getSelectedFile();
}

//prints out the link or path users clicked
System.out.println(openMenu.getSelectedFile().getAbsolutePath());
} //End Method
);

turnBGYellow.addActionListener((ActionEvent ae) -> {
getContentPane().setBackground(Color.YELLOW); //Whatever color
});

fileMenu.setMnemonic(‘F’);

editMenu = new JMenu(“Edit”);

aboutMenu = new JMenu(“About”);

// TODO: Add menu items
// TODO: Add listener to second menu item
setJMenuBar(menuBar);
menuBar.add(fileMenu);
menuBar.add(editMenu);
menuBar.add(aboutMenu);
} //End Constructor

} //End Class

OUTPUT:

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