When to send JOIN channel to IRC server?urgent..

Question

i have a problem regarding sending information to IRC server. I want to send the join message to server. But i can only do so after server has finished sending information to me. may i know the correct coding ? i have tried to send it after the while loop but within the try {} it still wouldnt send. when i tried to send it earlier by placing the code above the while loop, the server will display error requesting me to register first.
Below are the codings... Thanks in advance
import java.io.*; //---These two are needed for socket support---
import java.net.*;
public class IRCConnect
public static void main(String args[])
try
char response;
Socket s = new Socket("singapore.sg.galaxynet.org", 7000);
BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));
PrintWriter out = new PrintWriter(s.getOutputStream(), true); //---Set up an output stream---
out.println( "USER" + " " + "Testbot" + " " + "an13810.ath.cx" + " " + "singapore.sg.galaxynet.org" + " " + ":" + "Test bot" );
out.println( "NICK" + " " + "testWLbot");
String line;
     do //to join channel...
     out.println( "JOIN" + " " + "#" + "ReXT6ux" );
     out.println ( "PRIVMSG" + " " + "#" + "ReXT6ux" + " " + ":" + "Welcome to #ReXT6ux" );     }
     while((line = in.readLine()) == null); //to wait for server to finish sending data to client.
while((line = in.readLine()) != null)
     System.out.println(line);      //---Displaying status.---
     if(line.substring(0,4).equalsIgnoreCase("ping"))      //---To prevent from disconnect.---
     String pongmsg = "pong " + line.substring(5);
     //System.out.println(pongmsg);
     out.println(pongmsg);
     System.out.println("ping pong");
     }//---End if---
} //---End Try---
catch(IOException e)
e.printStackTrace();
} //---End Catch---
}

Answer 1

i had a similiar problem, i believe the solution was to wait after sending the "NICK" or "USER" commands to receive some sort of response (could be PING) look at the RFC (www.rfc-editor.org) and if you don't find it there i can post the code i used but its long and messy.
but i think your problem is you need to respond to a ping (or some other command) after trying to authorize.