Error with Menu Bar

I have problem with Java menu bar. When i use Flowout / BoxLayout / GridBagLayout layout manager it shows no problem. But with Absolute layout manager it shows some compilation error.

Code:

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AbsoluteLayoutDemo.java:76: cannot find symbol
symbol  : method setJMenuBar(javax.swing.JMenuBar)
location: class AbsoluteLayoutDemo
                setJMenuBar( bar ); // Add menu bar to application

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My code is following:

Code:

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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.sql.*;
import oracle.jdbc.*;
public class AbsoluteLayoutDemo
{
        private static JLabel heading; // JLabel for heading
        private static JLabel label1;
        private static JLabel label2;
        private static JLabel label3;
        private static JLabel label4;
        private static JTextField jTextField1;
        private static JTextField jTextField2;
        private static JComboBox comboBox1;
        private static JComboBox comboBox2;
        private static JButton submit;

        public static void addComponentsToPane(Container pane)
        {
                //super( "Project menu" );
                pane.setLayout(null);

                JMenu fileMenu = new JMenu( "File" ); // Create file menu
                fileMenu.setMnemonic( 'F' ); // Set Mnemonic to F

                // Create About... menu item
                JMenuItem aboutItem = new JMenuItem( "About..." );
                aboutItem.setMnemonic( 'A' ); // Set Mnemonic to A
                fileMenu.add( aboutItem ); // Add about item to file menu
                aboutItem.addActionListener
                (
                        new ActionListener() // Anonymous inner class
                        {
                                // display message dialog
                                public void actionPerformed( ActionEvent event )
                                {
                                        //JOptionPane.showMessageDialog( Menu.this,"This program is developed by Mohammad Rahid Hasan","About",JOptionPane.PLAIN_MESSAGE );
                                }
                        }
                );
                JMenuItem exitItem = new JMenuItem( "Exit" ); // Create exit item
                exitItem.setMnemonic( 'x' ); // Set Mnemonic to x
                fileMenu.add( exitItem );
                exitItem.addActionListener
                (
                        new ActionListener() // Anonymous inner class
                        {
                                // Terminate application when user click on exitItem
                                public void actionPerformed( ActionEvent event )
                                {
                                        System.exit( 0 );
                                }
                        }
                );

                JMenu adminMenu = new JMenu( "Admin" ); // Create Admin Menu
                adminMenu.setMnemonic( 'D' );
                JMenuItem flightItem = new JMenuItem( "Add flight list" );
                flightItem.setMnemonic( 'F' );
                adminMenu.add( flightItem );
                flightItem.addActionListener
                (
                        new ActionListener() // Anonymous inner class
                        {
                                // display message dialog
                                public void actionPerformed( ActionEvent event )
                                {
                                        //JOptionPane.showMessageDialog( Menu.this,"This item is not yet developed","Add flight list",JOptionPane.PLAIN_MESSAGE );
                                }
                        }
                );

                JMenuBar bar = new JMenuBar(); // create Menu bar
                setJMenuBar( bar ); // Add menu bar to application
                bar.add( fileMenu ); // Add file menu to menu bar
                bar.add( adminMenu );

                heading = new JLabel( "Fly High Ticket Reservation System" );
                heading.setHorizontalTextPosition( SwingConstants.LEFT );
                heading.setVerticalTextPosition( SwingConstants.TOP );
                heading.setFont(new Font("Serif", Font.BOLD, 20));
               

                label1 = new JLabel( "First Name:" );
                label1.setHorizontalTextPosition( SwingConstants.LEFT );
                label1.setVerticalTextPosition( SwingConstants.TOP );
                label1.setFont(new Font("Serif", Font.PLAIN, 12));

                // construct textfield with 10 columns
                jTextField1 = new JTextField( 10 );

                label2 = new JLabel( "Last Name:" );
                label2.setHorizontalTextPosition( SwingConstants.LEFT );
                label2.setVerticalTextPosition( SwingConstants.TOP );
                label2.setFont(new Font("Serif", Font.PLAIN, 12));

                jTextField2 = new JTextField( 10 );

                label3 = new JLabel( "Select source sector:" );
                label3.setHorizontalTextPosition( SwingConstants.LEFT );
                label3.setVerticalTextPosition( SwingConstants.TOP );
                label3.setFont(new Font("Serif", Font.PLAIN, 12));

                String sectors[] = { "DHK", "CTG", "SYL", "COX", "RAJ", "JES" };
                JComboBox comboBox1 = new JComboBox( sectors );

                label4 = new JLabel( "Select destination sector:" );
                label4.setHorizontalTextPosition( SwingConstants.LEFT );
                label4.setVerticalTextPosition( SwingConstants.TOP );
                label4.setFont(new Font("Serif", Font.PLAIN, 12));

                JComboBox comboBox2 = new JComboBox( sectors );

                JButton submit = new JButton( "Submit" );

                JLabel image = new JLabel("",new ImageIcon("images.jpg"),JLabel.CENTER);

                pane.add( heading );
                pane.add( label1 );
                pane.add( jTextField1 );
                pane.add( label2 );
                pane.add( jTextField2 );
                pane.add( label3 );
                pane.add( comboBox1 );
                pane.add( label4 );
                pane.add( comboBox2 );
                pane.add( submit );
                pane.add( image );

        Insets insets = pane.getInsets();
        //Dimension size = b1.getPreferredSize();

        heading.setBounds( 130 + insets.left, 10 + insets.top, 500, 25 );
        label1.setBounds( 85 + insets.left, 80 + insets.top, 100, 50 );
                jTextField1.setBounds( 70 + insets.left, 120 + insets.top, 150, 18 );
        label2.setBounds( 85 + insets.left, 120 + insets.top, 100, 50 );
                jTextField2.setBounds( 70 + insets.left, 160 + insets.top, 150, 18 );
        label3.setBounds( 85 + insets.left, 160 + insets.top, 150, 50 );
                comboBox1.setBounds( 70 + insets.left, 200 + insets.top, 80, 18 );
        label4.setBounds( 85 + insets.left, 203 + insets.top, 170, 50 );
                comboBox2.setBounds( 70 + insets.left, 243 + insets.top, 80, 18 );
                submit.setBounds( 70 + insets.left, 270 + insets.top, 90, 18 );
                image.setBounds( 370, 100, 230, 178 );
        }

    /**
    * Create the GUI and show it.  For thread safety,
    * this method should be invoked from the
    * event-dispatching thread.
    */
    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("AbsoluteLayoutDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Set up the content pane.
        addComponentsToPane(frame.getContentPane());

        //Size and display the window.
        Insets insets = frame.getInsets();
        frame.setSize(700 + insets.left + insets.right,
                      400 + insets.top + insets.bottom);
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

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I'm completely new in java. So please help me & get me out of this problem.

Quote:

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Originally Posted by rahid

I have problem with Java menu bar. When i use Flowout / BoxLayout / GridBagLayout layout manager it shows no problem. But with Absolute layout manager it shows some compilation error.

Code:

---

AbsoluteLayoutDemo.java:76: cannot find symbol
symbol  : method setJMenuBar(javax.swing.JMenuBar)
location: class AbsoluteLayoutDemo
                setJMenuBar( bar ); // Add menu bar to application

---

---

Your compiler is right: your class doesn't have a method setJMenuBar( ... ). What did you have in mind? What or where should the menu bar be set?

kind regards,

Jos

I just need a menu bar in the window with Absolute Layout manger. And of course it will be st in top of the window. What should my code.

Thanx for reply.

Quote:

---

Originally Posted by rahid

I have problem with Java menu bar. When i use Flowout / BoxLayout / GridBagLayout layout manager it shows no problem. But with Absolute layout manager it shows some compilation error.

Code:

---

AbsoluteLayoutDemo.java:76: cannot find symbol
symbol  : method setJMenuBar(javax.swing.JMenuBar)
location: class AbsoluteLayoutDemo
                setJMenuBar( bar ); // Add menu bar to application

---

---

As already mentioned, that error is nothing to do with the layout manager. So I'd look at the version of the code that works with the other managers and compare them to this one.

the problem is, you're passing the panel to your method addComponentsToPane and a jpanel has no method called setJMenuBar. i changed your code, so that the frame is passed to the method because the jframe has the method called setJMenuBar and then your code runs without problems.

Code:

---

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.sql.*;
import oracle.jdbc.*;

public class AbsoluteLayoutDemo
{
        private static JLabel heading; // JLabel for heading
        private static JLabel label1;
        private static JLabel label2;
        private static JLabel label3;
        private static JLabel label4;
        private static JTextField jTextField1;
        private static JTextField jTextField2;
        private static JComboBox comboBox1;
        private static JComboBox comboBox2;
        private static JButton submit;

        // first change is the argument
        public static void addComponentsToPane(JFrame frame)
        {
                // get your pane from the frame
                Container pane = frame.getContentPane();
                pane.setLayout(null);

                JMenu fileMenu = new JMenu( "File" ); // Create file menu
                fileMenu.setMnemonic( 'F' ); // Set Mnemonic to F

                // Create About... menu item
                JMenuItem aboutItem = new JMenuItem( "About..." );
                aboutItem.setMnemonic( 'A' ); // Set Mnemonic to A
                fileMenu.add( aboutItem ); // Add about item to file menu
                aboutItem.addActionListener
                (
                        new ActionListener() // Anonymous inner class
                        {
                                // display message dialog
                                public void actionPerformed( ActionEvent event )
                                {
                                        //JOptionPane.showMessageDialog( Menu.this,"This program is developed by Mohammad Rahid Hasan","About",JOptionPane.PLAIN_MESSAGE );
                                }
                        }
                );
                JMenuItem exitItem = new JMenuItem( "Exit" ); // Create exit item
                exitItem.setMnemonic( 'x' ); // Set Mnemonic to x
                fileMenu.add( exitItem );
                exitItem.addActionListener
                (
                        new ActionListener() // Anonymous inner class
                        {
                                // Terminate application when user click on exitItem
                                public void actionPerformed( ActionEvent event )
                                {
                                        System.exit( 0 );
                                }
                        }
                );

                JMenu adminMenu = new JMenu( "Admin" ); // Create Admin Menu
                adminMenu.setMnemonic( 'D' );
                JMenuItem flightItem = new JMenuItem( "Add flight list" );
                flightItem.setMnemonic( 'F' );
                adminMenu.add( flightItem );
                flightItem.addActionListener
                (
                        new ActionListener() // Anonymous inner class
                        {
                                // display message dialog
                                public void actionPerformed( ActionEvent event )
                                {
                                        //JOptionPane.showMessageDialog( Menu.this,"This item is not yet developed","Add flight list",JOptionPane.PLAIN_MESSAGE );
                                }
                        }
                );

                JMenuBar bar = new JMenuBar(); // create Menu bar
                // the bar is added to the frame and not to the panel
                frame.setJMenuBar( bar ); // Add menu bar to application
                bar.add( fileMenu ); // Add file menu to menu bar
                bar.add( adminMenu );

                heading = new JLabel( "Fly High Ticket Reservation System" );
                heading.setHorizontalTextPosition( SwingConstants.LEFT );
                heading.setVerticalTextPosition( SwingConstants.TOP );
                heading.setFont(new Font("Serif", Font.BOLD, 20));
               

                label1 = new JLabel( "First Name:" );
                label1.setHorizontalTextPosition( SwingConstants.LEFT );
                label1.setVerticalTextPosition( SwingConstants.TOP );
                label1.setFont(new Font("Serif", Font.PLAIN, 12));

                // construct textfield with 10 columns
                jTextField1 = new JTextField( 10 );

                label2 = new JLabel( "Last Name:" );
                label2.setHorizontalTextPosition( SwingConstants.LEFT );
                label2.setVerticalTextPosition( SwingConstants.TOP );
                label2.setFont(new Font("Serif", Font.PLAIN, 12));

                jTextField2 = new JTextField( 10 );

                label3 = new JLabel( "Select source sector:" );
                label3.setHorizontalTextPosition( SwingConstants.LEFT );
                label3.setVerticalTextPosition( SwingConstants.TOP );
                label3.setFont(new Font("Serif", Font.PLAIN, 12));

                String sectors[] = { "DHK", "CTG", "SYL", "COX", "RAJ", "JES" };
                JComboBox comboBox1 = new JComboBox( sectors );

                label4 = new JLabel( "Select destination sector:" );
                label4.setHorizontalTextPosition( SwingConstants.LEFT );
                label4.setVerticalTextPosition( SwingConstants.TOP );
                label4.setFont(new Font("Serif", Font.PLAIN, 12));

                JComboBox comboBox2 = new JComboBox( sectors );

                JButton submit = new JButton( "Submit" );

                JLabel image = new JLabel("",new ImageIcon("images.jpg"),JLabel.CENTER);

                pane.add( heading );
                pane.add( label1 );
                pane.add( jTextField1 );
                pane.add( label2 );
                pane.add( jTextField2 );
                pane.add( label3 );
                pane.add( comboBox1 );
                pane.add( label4 );
                pane.add( comboBox2 );
                pane.add( submit );
                pane.add( image );

        Insets insets = pane.getInsets();
        //Dimension size = b1.getPreferredSize();

        heading.setBounds( 130 + insets.left, 10 + insets.top, 500, 25 );
        label1.setBounds( 85 + insets.left, 80 + insets.top, 100, 50 );
                jTextField1.setBounds( 70 + insets.left, 120 + insets.top, 150, 18 );
        label2.setBounds( 85 + insets.left, 120 + insets.top, 100, 50 );
                jTextField2.setBounds( 70 + insets.left, 160 + insets.top, 150, 18 );
        label3.setBounds( 85 + insets.left, 160 + insets.top, 150, 50 );
                comboBox1.setBounds( 70 + insets.left, 200 + insets.top, 80, 18 );
        label4.setBounds( 85 + insets.left, 203 + insets.top, 170, 50 );
                comboBox2.setBounds( 70 + insets.left, 243 + insets.top, 80, 18 );
                submit.setBounds( 70 + insets.left, 270 + insets.top, 90, 18 );
                image.setBounds( 370, 100, 230, 178 );
        }

    /**
    * Create the GUI and show it.  For thread safety,
    * this method should be invoked from the
    * event-dispatching thread.
    */
    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("AbsoluteLayoutDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Set up the content pane.
        addComponentsToPane(frame);

        //Size and display the window.
        Insets insets = frame.getInsets();
        frame.setSize(700 + insets.left + insets.right,
                      400 + insets.top + insets.bottom);
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

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ThanX a lot j2me64. ThanX for help..............:)

Quote:

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Originally Posted by rahid

ThanX a lot j2me64. ThanX for help..............:)

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you are welcome!