EXPERT socket programmers help needed please!

Question

I basically have this very simple client/server app, where I can enter messages at the client to send to the server, and the server will display it on its screen.
But how would I extend it to support multi client? So when I send messages from different clients, the server will diplay the message on its screen and also send the message back to all connected clients? Here's my current code
Server:
import java.net.*;
import java.io.*;
public class Server {
    public static void main(String[] args) throws IOException {
     ServerSocket serverSocket = new ServerSocket(5432);
     for (;;) {
         Socket clientSocket = null;
         try {
          clientSocket = serverSocket.accept();
         } catch (IOException e) {
          System.err.println("Accept failed.");
          System.exit(1);
         BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
         String nextline;
         while ((nextline = in.readLine())!=null) {
          System.out.println(nextline);
         in.close();
         clientSocket.close();
}Client
import java.io.*;
import java.net.*;
public class Client {
    public static void main(String[] args) throws IOException {
     Socket csocket = null;
     PrintWriter out = null;
     try {
         csocket = new Socket("localhost", 5432);
         out = new PrintWriter(csocket.getOutputStream(), true);
     } catch (IOException e) { }
     BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
     String nextline;
     while ((nextline = stdIn.readLine()) != null) {
         out.println(nextline);
     out.close();
     csocket.close();
     stdIn.close();
}

Answer 1

jverd wrote:
javaguy86 wrote:
But how would I extend it to support multi client?Ever hear of collections? Loops?Hardly the answer of an expert in Socket programming!!!!