Using menu concept

Question

Hi....! please give me the output of this program ....here after runing this program am geiting this error as
Exception in thread "main" java.lang.NoSuchMethodError: main
please help me out ...advance thank u...!
import java.lang.*;
import java.applet.Applet;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Menu;
import java.awt.MenuBar;
import java.awt.MenuItem;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
<applet code="MenuDemo" width=200 height=200>
class MenuFrame extends Frame
String msg = "";
MenuFrame(String title) {
MenuBar mbar = new MenuBar();
Menu Package = new Menu("Package");
MenuItem item1, item2;
Package.add(item1 = new MenuItem("Active"));
Package.add(item2 = new MenuItem("Passive"));
Menu sub1 = new Menu("Active");
MenuItem item3, item4, item5;
sub1.add(item3 = new MenuItem("Condutors"));
sub1.add(item4 = new MenuItem("inductors"));
sub1.add(item5 = new MenuItem("resistors"));
Package.add(sub1);
Menu sub2 = new Menu("Passive");
MenuItem item6, item7, item8, item9, item10;
sub2.add(item6 = new MenuItem("Digitalizers"));
sub2.add(item7 = new MenuItem("Analogic"));
sub2.add(item8 = new MenuItem("Transmittor"));
sub2.add(item9 = new MenuItem("MOSFET"));
sub2.add(item10 = new MenuItem("Diodes"));
Package.add(sub2);
Menu sub3 = new Menu("Resistors");
MenuItem item11, item12, item13, item14;
sub3.add(item11 = new MenuItem("DIP"));
sub3.add(item12 = new MenuItem("1206"));
sub3.add(item13 = new MenuItem("0805"));
sub3.add(item14 = new MenuItem("0603"));
Package.add(sub3);
MyMenuHandler handler = new MyMenuHandler(this);
item1.addActionListener(handler);
item2.addActionListener(handler);
item3.addActionListener(handler);
item4.addActionListener(handler);
item5.addActionListener(handler);
item6.addActionListener(handler);
item7.addActionListener(handler);
item8.addActionListener(handler);
item9.addActionListener(handler);
item10.addActionListener(handler);
item11.addActionListener(handler);
item12.addActionListener(handler);
item13.addActionListener(handler);
item14.addActionListener(handler);
MyWindowAdapter adapter = new MyWindowAdapter(this);
addWindowListener(adapter);
public void paint(Graphics g) {
class MyWindowAdapter extends WindowAdapter {
MenuFrame menuFrame;
public MyWindowAdapter(MenuFrame menuFrame) {
this.menuFrame = menuFrame;
public void windowclosing(WindowEvent we) {
menuFrame.setVisible(false);
class MyMenuHandler implements ActionListener, ItemListener {
MenuFrame menuFrame;
public MyMenuHandler(MenuFrame menuFrame) {
this.menuFrame = menuFrame;
public void actionPerformed(ActionEvent ae) {
String msg = "You selected";
String arg = ae.getActionCommand();
if (arg.equals("Active..."))
msg += "Active.";
else if (arg.equals("passive.."))
msg += "Passive.";
else if (arg.equals("conductors"))
msg += "conductors.";
else if (arg.equals("resistors"))
msg += "resistors.";
else if (arg.equals("inductors"))
msg += "inductors.";
else if (arg.equals("digitalizers"))
msg += "digitalizers.";
else if (arg.equals("Analogic"))
msg += "Analogic.";
else if (arg.equals("Transmitor"))
msg += "transimitor.";
else if (arg.equals("MOSFET"))
msg += "MOSFET.";
else if (arg.equals("diodes"))
msg += "diodes.";
else if (arg.equals("DIP"))
msg += "DIP.";
else if (arg.equals("1206"))
msg += "1206.";
else if (arg.equals("0805"))
msg += "0805.";
else if (arg.equals("0603"))
msg += "0603.";
public void itemStateChanged(ItemEvent ie) {
menuFrame.repaint();
public class MenuDemo extends Applet {
Frame f;
public void init() {
f = new MenuFrame("Menu Demo");
int width = Integer.parseInt(getParameter("Width"));
int height = Integer.parseInt(getParameter("height"));
setSize(new Dimension(width, height));
f.setSize(width, height);
f.setVisible(true);
public void start() {
f.setVisible(true);
public void stop() {
f.setVisible(false);
}

Answer 1

add the following code in your java program
public static void main(String[] args) {
MenuFrame window = new MenuFrame("Sample Application");
window.pack(); // Arrange the components.
window.setVisible(true); // Make the window visible.
or create the html and add the following code in your html
<applet code="MenuDemo" width=200 height=200>