web - No main class in small Java program + embedding as applet -

i'm having issue code. this. when compile in netbeans says " not find or load main class form" see right in code...what doing incorrectly?

second of all, embed on web page compile , ? thank help. i'm week java gui stuff.

package gui;  import java.applet.applet; import java.awt.*; import java.awt.eventqueue; import java.awt.gridlayout; import javax.swing.*;  class form {     private static void display() {         jtextfield field1 = new jtextfield();         jtextfield field2 = new jtextfield();         jtextfield field3 = new jtextfield();         jtextfield field4 = new jtextfield();         jtextfield field5 = new jtextfield();         jpanel panel = new jpanel(new gridlayout(0, 1));         panel.add(new jlabel("username:"));         panel.add(field1);         panel.add(new jlabel("password:"));         panel.add(field2);         panel.add(new jlabel("repeat password:"));         panel.add(field3);         panel.add(new jlabel("email address:"));         panel.add(field4);         panel.add(new jlabel("repeat email address:"));         panel.add(field5);         int result = joptionpane.showconfirmdialog(null, panel, "form",             joptionpane.ok_cancel_option, joptionpane.plain_message);     }     public static void main(string[] args) {         eventqueue.invokelater(new runnable() {              @override             public void run() {                 display();             }         });     } } 

make class public , main method found , run properly.