Java socket

I am trying to open a socket and send a
query to a remote comp. It connects allright, but does not
respond to the query, not even with an error message - that's
the problem.

just fyi - the ultimate goal of this program is to find mashines
within given IP range and read their parameters (hostname, mac
address, etc.)

Thanks a bunch! :)
alex


try {
input = new BufferedReader(new
InputStreamReader(System.in));
OutputStream out = socket.getOutputStream();

out.write (45);
System.out.println ("start reading");
BufferedReader din =
new BufferedReader(new InputStreamReader
(socket.getInputStream()));
System.out.println ("done creating object");
response = din.readLine();
System.out.println ("done reading");

System.out.print (response);
socket.close();
//}
}
catch (IOException e) {
System.out.println(e);
}

have you tried the URL connections?
It will open a connection, then you'll have to request the rest once it's opened. it takes a full http://www.blah.com/
url argument at the command line
----------------------------------
import java.io.*;
import java.net.*;

public class Url {
public static void main(String args[]) {
boolean conn=true;
for (int i = 0; i <args.length; i++){
try{
URL u = new URL(args[i]);

try{ URLConnection uc = u.openConnection();
InputStream in = uc.getInputStream( );
} catch (IOException e) {
conn=false;
}

}catch (MalformedURLException e) {
conn=false;
} //end first try
} //end for

if (conn)
System.out.println(conn);
else
System.out.println(conn);
}
}