TCPServer

package socketsMoreClients;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

public class TCPServer {
     public static void main(String argv[]) throws Exception
       {

          System.out.println("starting main");
          String sentence;
          String userText;
          boolean go_on = true;

          ServerSocket welcomeSocket = new ServerSocket(6780);
          System.out.println("we have a socket");
          BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));

               System.out.println("waiting for a connection");
               Socket connectionSocket = welcomeSocket.accept();
               BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
               DataOutputStream  outToClient = new DataOutputStream(connectionSocket.getOutputStream());
               sentence = inFromClient.readLine();
               System.out.println("FROM CLIENT: " + sentence);

             while(go_on)
            {
               System.out.print("Please type your text: ");
               userText = inFromUser.readLine();
               outToClient.writeBytes(userText + '\n');

               sentence = inFromClient.readLine();
               System.out.println("FROM CLIENT: " + sentence);
               if (sentence.equals("quit")) { go_on = false; }
            }

          System.out.println("quitting the loop and closing the socket");
          connectionSocket.close();
          welcomeSocket.close();
        }
}