扩展Java小程序使所有内容不可见-关闭

我有一个正在工作的Java应用程序，它正在随机化一个字符串，每隔一次单击按钮时，它就会显示随机化的文本。因此，当有人单击按钮时，它会告诉他们在游戏中的位置，然后将他们带到一个空白屏幕，等待下一个玩家单击，等等。它工作正常，但当我将代码复制到新文件并键入：

extends JApplet

eclipse中的窗口是空白的，没有任何内容。不过，运行此命令时，控制台中没有错误。我的基本目标是使这个应用程序成为一个java小程序，这样我就可以在线发布它，并希望在其他设备上打开它而无需下载，比如iPhone

代码：

---

小程序没有main方法，它们有init方法。我把main改为init，没什么变化。小程序是死技术。你将无法在苹果或安卓手机的标准手机浏览器上运行它，而且它们都不支持Java插件。我不想麻烦。我尝试过的所有java到C++转换器都失败了，所以这对我来说是最后的手段。

package main;

import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;

import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class Main extends JApplet{

private static JFrame window = new JFrame();

private static JPanel one = new JPanel();
private static JPanel two = new JPanel();

//1-4 Players
private static JLabel job1 = new JLabel();
private static JLabel job2 = new JLabel();
private static JLabel job3 = new JLabel();
private static JLabel job4 = new JLabel();
private static JLabel jobprint = new JLabel();

private static JButton next = new JButton("Click To Find Your Position");

private static int countertwo = 0;
private static int counter = 0;


public static void shuffleArray(String[] a) {
int n = a.length;
Random random = new Random();
random.nextInt();
for (int i = 0; i < n; i++) {
  int change = i + random.nextInt(n - i);
  swap(a, i, change);
}
}

private static void swap(String[] a, int i, int change) {
String helper = a[i];
a[i] = a[change];
a[change] = helper;
  }

public static void main(String[] args) {
String[] a = new String[] { "Murderer", "Judge", "Innocent", "Innocent"};
shuffleArray(a);

next.setVisible(true);
job1.setVisible(false);
job2.setVisible(false);
job3.setVisible(false);
job4.setVisible(false);



for (String i : a) {
  System.out.println(i);
  counter++;
  if(counter == 1){
     job1.setText(i); 
  }
  if(counter == 2){
      job2.setText(i);
  }
  if(counter == 3){
      job3.setText(i);
  }
  if(counter == 4){
      job4.setText(i);
  }
}

next.addActionListener(new ActionListener(){
     public void actionPerformed(ActionEvent e){
        if(countertwo == 0){
            jobprint.setVisible(true);
            jobprint.setText(job1.getText());
            next.setText("Click Again");
            countertwo++;
        }else if(countertwo == 1){
            jobprint.setText("");
            next.setText("Click To Find Your Position");
            countertwo++;
        }else if(countertwo == 2){
            jobprint.setText(job2.getText());
            next.setText("Click Again");
            countertwo++;
        }else if(countertwo == 3){
            jobprint.setText("");
            next.setText("Click To Find Your Position");
            countertwo++;
        }else if(countertwo == 4){
            jobprint.setText(job3.getText());
            next.setText("Click Again");
            countertwo++;
        }else if(countertwo == 5){
            jobprint.setText("");
            next.setText("Click To Find Your Position");
            countertwo++;
        }else if(countertwo == 6){
            jobprint.setText(job4.getText());
            countertwo++;
        }else if(countertwo == 7){
            jobprint.setText("Finished - Application by Fletcher Henneman");
            next.setVisible(false);
        }
     }
    });


window.setLayout(new GridLayout(5, 1));
window.setSize(500,400);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setResizable(false);

window.add(one);
window.add(two);

one.setLayout(new GridLayout(3, 4));
two.setLayout(new GridLayout(3, 4));

one.add(jobprint);

two.add(next);


window.setVisible(true);

  }
}