Java: Briefly explain the code in each area with /*comment*/ above it

import java.io.*;

import java.net.*;

public class HttpHeader {

public static void main(String args[]) throws java.io.IOException {

if (args.length < 1) {

System.err

.println("Usage: java HttpHeader [document name]");

System.exit(0);

}

final int PORT = 80;

Socket sock = null;

BufferedReader in = null;

PrintWriter out = null;

String requestedDocument = "";

if (args.length == 2)

requestedDocument = args[1];

try {

/* Comment Here */

sock = new Socket(args[0], PORT);

/* Comment Here */

in = new BufferedReader(

new InputStreamReader(sock.getInputStream()));

out = new PrintWriter(

new OutputStreamWriter(sock.getOutputStream()));

/* Comment Here */

String message = "GET /" + requestedDocument

+ " HTTP/1.1 Host: " + args[0] + " ";

out.print(message);

out.flush();

/* Comment Here */

String line;

while ((line = in.readLine()) != null) {

if (line.length() == 0)

break;

System.out.println(line);

}

}

/* Comment Here */

catch (Exception e) {

System.err.println(e);

} finally { // close all streams

if (in != null)

in.close();

if (out != null)

out.close();

if (sock != null)

sock.close();

}

}

}