import java.util.Random;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class test extends JFrame{
public static void main(String[]args){
import java.util.Random;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class test extends JFrame{
public static void main(String[]args){
import java.util.Random;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class test extends JFrame{
public static void main(String[]args){
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class test
{
public static void main(String[] args)
{
JFrame jtfMainFrame = new JFrame("安安");
<html>
<head>
<title> The First Example: Hello, World </title>
</head>
<body>
<h2> This line is HTML </h2>
<script language="JavaScript">