Have error in my program!

Question

WHEN I COMPILE THE PROGRAM
HAVE THIS MESSAGE:
NOTE: Grab.java uses or overrides a deprecated API.
Note: Recompile with-depreaction for details.
AND I COMPILE AGAIN WITH -depreaction
THEN have this message:
Grab.java :44 : warning: readLine() in java.io.DataInputStream has been depreaction
while ((input = in.readLine()) != null)
^
THIS IS WHAT ERROR?? AND HOW TO CHANGE?
THE PROGRAM IS :
import java.net.*;
import java.io.*;
public class Grab
     public Grab (String textURL) throws IOException
          Socket socket = null;
          dissect (textURL);
          socket=connect();
          try { grab(); }
          finally { socket.close(); }
     protected String host, file;
     protected int port;
     protected void dissect (String textURL) throws MalformedURLException
          URL url = new URL(textURL);
          host = url.getHost();
          port = url.getPort();
          if (port == -1) port = 80;
          file = url.getFile();
     protected DataInputStream in;
     protected DataOutputStream out;
     protected Socket connect() throws IOException
          System.out.println("Connecting to " + host + ":" + port + "..");
          Socket socket = new Socket(host,port);
          System.out.println ("Connected.");
          OutputStream rawOut = socket.getOutputStream();
          InputStream rawIn = socket.getInputStream();
          BufferedOutputStream buffOut = new BufferedOutputStream(rawOut);
          out = new DataOutputStream (buffOut);
          in = new DataInputStream (rawIn);
          return socket;
     protected void grab() throws IOException
          System.out.println("Sending request..");
          out.writeBytes ("Get " + file + " HTTP/1.0\r\n\r\n");
          out.flush();
          System.out.println("Waiting for response..");
          String input;
          while ((input = in.readLine()) != null)
               System.out.println(input);
     public static void main (String args[]) throws IOException
          DataInputStream kbd = new DataInputStream(System.in);
          while (true)
               String textURL;
               System.out.print("Enter an URL: ");
               System.out.flush();
               if ((textURL = kbd.readLine()) == null) break;
               try { new Grab (textURL); }
               catch (IOException ex)
                    ex.printStackTrace();
                    continue;
               System.out.println ("- OK -");
          System.out.println ("exit");
}

Answer 1

Have you read the API?
http://java.sun.com/j2se/1.4.2/docs/api/java/io/DataInputStream.html
It tells you why this method is deprecated and what method to use instead.
kari-matti