Let's say you have this program:

public class sample

        public static void main(String args[])
        {
           System.out.println("Hello world!");
        }
}

... is there a converter that will turn it into this:

import java.applet.Applet; import javax.swing.*;

public class sample extends JApplet
{

    public static JTextArea area;

    public void init()
    {

        area = new JTextArea();
        add(area);
        area.append("Hello world!");
    }
}

I mean, I can do it by hand... but it would take some time.