Hello... I have a very big prob here. I have 2 IPs. I dunno what
happened but when I executed the same progs in the 2 IPs: in the 1st
IP, the prog was working but in the 2nd IP, it threw an
java.net.UnknownHostException . . . Here is the code:

import java.io.*;
import java.net.*;
import java.util.*;

public class UCDemo
{
    public static void main(String[] args)
    {
        try
        {
            String inputLine = "";
            String resultString = "";
            URL url = new URL("http://www.internic.net");
            URLConnection uc = url.openConnection();

            if (!(uc instanceof HttpURLConnection))
            {
                System.err.println ("Wrong connection type");
            }

            BufferedReader in = new BufferedReader(new
InputStreamReader(uc.getInputStream()));

            while ((inputLine = in.readLine()) != null)
              resultString+=inputLine;
            in.close();

            System.out.println(resultString);

        }catch(Exception e)
        {
            e.printStackTrace();
        }
    }
}

And here is the exception:

java.net.UnknownHostException: www.internic.net
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:177)
    at java.net.Socket.connect(Socket.java:507)
    at java.net.Socket.connect(Socket.java:457)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:365)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:477)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:214)
    at sun.net.www.http.HttpClient.New(HttpClient.java:287)
    at sun.net.www.http.HttpClient.New(HttpClient.java:299)
    at
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:792)
    at
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:744)
    at
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:669)
    at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:913)
    at UCDemo.main(UCDemo.java:22)

What went wrong?!? Please help... Thanks a lot.