我是学VB的,谁帮我把这个简单的程序加个注释

最好能每行加个注释,谢谢
package cn;
import javax.jws.WebService;
import org.opensolaris.os.dtrace.*;
import java.io.*;@WebService()
public class Web {
     public static void  start() {
        writeXMLHeader();
        File f=new File("/dtrace/NETWORKSTAT.D");                   
        Consumer consumer = new LocalConsumer();
        consumer.addConsumerListener(new ConsumerAdapter() {
            public void dataReceived(DataEvent e) {
                writefile(e.getProbeData().toString());   
                writeXMLFooter(); 
            }            });        try {
            consumer.open();
            consumer.compile(f);
            consumer.enable();
            consumer.go();
                          
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        }
            }    public static void writeXMLHeader(){
        char[] buff = new char[1024];
        
        try {
            FileOutputStream outfile = null;
           outfile = new FileOutputStream("/project/WebApplication1/web/XML.xml");
           DataOutputStream dos=new DataOutputStream(outfile);           String header="<?xml version=\"1.0\" encoding=\"UTF-8\"?> <NODES>";
       
            System.out.println(header);
            dos.write(header.getBytes("UTF-8"));
                     
        } catch (Exception e) {
            System.err.println("This file doesn't exist!");
            System.exit(1);
        }
       
    }
    public static void writeXMLFooter(){
        byte[] buff = new byte[1024];
        try {
         FileOutputStream outfile = null;
           outfile = new FileOutputStream("/project/WebApplication1/web/XML.xml",true);
           String footer="</NODES>";
           
           DataOutputStream dos=new DataOutputStream(outfile);
           
            System.out.println(footer);
            dos.write(footer.getBytes("UTF-8"));            
            
        } catch (Exception e) {
            System.err.println("This file doesn't exist.");
            System.exit(1);
        }        
    
    }
    
    public static void writefile(String str)
    
    {
        boolean cont = true;
        
      String s=str.substring(127,212);     
        
        try {
            FileOutputStream outfile = null;
           outfile = new FileOutputStream("/project/WebApplication1/web/XML.xml",true);
            
            DataOutputStream dos=new DataOutputStream(outfile);
            
           System.out.println(s);            dos.write(s.getBytes("UTF-8"));
            
            
        } catch (Exception e) {
            System.err.println("This file doesn't exist.");
            System.exit(1);
        
        }
        
    }
    
    public static void main(String[] args) {
        start();        Consumer consumer = new LocalConsumer();
    }   
}