Java Chat, server/client*x

Question

Hey,
I'm trying to make a chat and I've made the server and client, and the server can accept several clients. Only; they communicate client-server, and not client-server-client (if you get what I mean) like I want them to, pretty obviously, since its a chat. I'm still very new to this, heres my code anyhow:
Server
import java.net.*;
import java.io.*;
public class OJChatServer{
     public static void main(String[] args) throws IOException{
          int port=2556;
          boolean listening = true;
          ServerSocket cServerSocket = null;
          try{
               cServerSocket = new ServerSocket(port);
               System.out.println("Server started; Waiting for client(s) to connect.");
          } catch(IOException e){
               System.err.println("Could not listen on port: "+port);
               System.exit(1);
          while(listening){
               try{
                    new handleClient(cServerSocket.accept()).start();
               } catch(IOException e){
                    System.err.println("Accept has failed");
                    System.exit(1);
          cServerSocket.close();
     static class handleClient extends Thread{
          private Socket clientSocket = null;
          private PrintWriter send;
          private BufferedReader recieve;
          private String inputString, outputString;
          private String clientName = "";
          public handleClient(Socket acceptedSocket){
               //super("handleClient");
               this.clientSocket = acceptedSocket;
          public void run(){
               try{
                    recieve = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
                    send = new PrintWriter(clientSocket.getOutputStream(), true);
                    inputString = recieve.readLine();
                    clientName = inputString;
                    System.out.println("Client \""+clientName+"\" has connected. ("+clientSocket+")");
                    while(inputString != null){
                         outputString = processInput(inputString);
                    //     outputString = send.readLine();
                         send.println(outputString);
                         if(inputString.equalsIgnoreCase("Quit")||inputString.equalsIgnoreCase("/Quit")) break;
                         inputString = recieve.readLine();
                    System.out.println("Client \""+clientName+"\" has disconnected. ("+clientSocket+")");
               send.close();
               recieve.close();
               clientSocket.close();
               } catch(IOException e){
                    //e.printStackTrace();
                    System.out.println("Client \""+clientName+"\" has disconnected. ("+clientSocket+")");
          }//run()
          static String processInput(String theInput){
               String theOutput = "From server. Test";
               return theOutput;
     }//handleClient
}//OJChatServer---------------------------------------------------------------------------------------------
Client
import java.net.*;
import java.io.*;
public class OJChatClient{
     public static void main(String[] args) throws IOException{
          String nickname = "Guest";
          String host = "localhost";
          int port = 2556;
          Socket cClientSocket = null;
          PrintWriter send = null;
          BufferedReader recieve = null;
          BufferedReader stdIn = null;
          String fromServer, fromUser;
          System.out.println("Welcome to Ove's Java Chat!\nFor help and commands type: /help");
          nickname = KeyboardReader.readString("Enter nickname: ");
          System.out.println("Connecting to host...");
          try{
               cClientSocket = new Socket(host, port);
               send = new PrintWriter(cClientSocket.getOutputStream(), true);
               System.out.println("Connection established.");
          } catch(UnknownHostException e){
               System.err.println("Unknown host: "+host);
               System.exit(1);
          } catch(IOException e){
               System.err.println("Couldn't get I/O for connection: "+host+"\nRequested host may not exist or server is not started");
               System.exit(1);
          send.println(nickname);
          stdIn = new BufferedReader(new InputStreamReader(System.in));
          recieve = new BufferedReader(new InputStreamReader(cClientSocket.getInputStream()));
          while((fromServer = recieve.readLine())!=null){
               System.out.println("Server: "+fromServer);
               fromUser = stdIn.readLine();
               if(fromUser!=null){
                    //System.out.println(nickname+": "+fromUser);
                    send.println(fromUser);
               if(fromUser.equalsIgnoreCase("Quit")||fromUser.equalsIgnoreCase("/Quit")) break;
          System.out.println("Closing connection...");
          send.close();
          recieve.close();
          stdIn.close();
          cClientSocket.close();
          System.out.println("Connection terminated.");
          System.out.println("Goodbye and happy christmas!");
}I want to make it graphical too, but I want to make it work like it should, before i tackle trying Swing out. This code isn't completely complete yet, as you can see. It doesn't handle the clients messages correctly yet.
What I want to know is how i should send a message from a client to all the other Sockets on the server.

Answer 1

It compiles, but it gives an error when the client connects.
import java.net.*;
import java.io.*;
public class OJChatServer4{
     static Socket[] clientSockets = new Socket[100];
     static int socketCounter = 0;
     public static void main(String[] args) throws IOException{
          int port=2556;
          boolean listening = true;
          ServerSocket cServerSocket = null;
          try{
               cServerSocket = new ServerSocket(port);
               System.out.println("Server started; Waiting for client(s) to connect.");
          } catch(IOException e){
               System.err.println("Could not listen on port: "+port);
               System.exit(1);
          while(listening){
               try{
                    clientSockets[socketCounter] = cServerSocket.accept();
                    new handleClient(clientSockets[socketCounter]).start();
                    socketCounter++;
               } catch(IOException e){
                    System.err.println("Accept has failed");
                    System.exit(1);
          cServerSocket.close();
     static class handleClient extends Thread{
          private Socket clientSocket = null;
          public static PrintWriter send;
          private BufferedReader recieve;
          private String inputString, outputString;
          private String clientName = "";
          public handleClient(Socket acceptedSocket){
               //super("handleClient");
               this.clientSocket = acceptedSocket;
          public void run(){
               try{
                    recieve = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
                    send = new PrintWriter(clientSocket.getOutputStream(), true);
                    inputString = recieve.readLine();
                    clientName = inputString;
                    System.out.println("Client \""+clientName+"\" has connected. ("+clientSocket+")");
                    while(inputString != null){
                         //outputString =
                         processInput(inputString);
                    //     outputString = send.readLine();
                         send.println(outputString);
                         if(inputString.equalsIgnoreCase("Quit")||inputString.equalsIgnoreCase("/Quit")) break;
                         inputString = recieve.readLine();
                    System.out.println("Client \""+clientName+"\" has disconnected. ("+clientSocket+")");
               send.close();
               recieve.close();
               clientSocket.close();
               } catch(IOException e){
                    //e.printStackTrace();
                    System.out.println("Client \""+clientName+"\" has disconnected. ("+clientSocket+")");
          }//run()
          static void processInput(String theInput) throws IOException{
               //String theOutput = "Test From server.";
               PrintWriter sendToAll;
               sendToAll = new PrintWriter(clientSockets[socketCounter].getOutputStream(), true);
               for(int i=0;i<socketCounter;i++){
                    sendToAll.println(theInput);
               //return theOutput;
     }//handleClient
}//OJChatServer