chat-server-tcp-no thread

package chat1;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class Server
{

    public static void main(String[] args) throws Exception
    {
        // TODO code application logic here
        ServerSocket serverSocket = new ServerSocket(3000);
        System.out.println("Server ready for chatting");
        Socket socket = serverSocket.accept();
        // reading from keyboard (bufferedReader object)
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
        // sending to client (printWriter object)
        PrintWriter printWriter = new PrintWriter(socket.getOutputStream(), true);
        // receiving from server (receiveRead  object)
        BufferedReader receiveRead = new BufferedReader(new InputStreamReader(socket.getInputStream()));

        String receiveMessage, sendMessage;
        while (true)
        {
            //r
            if ((receiveMessage = receiveRead.readLine()) != null)
            {
                System.out.println(receiveMessage);
            }
            //s
            sendMessage = bufferedReader.readLine();
            printWriter.println(sendMessage);
            printWriter.flush();
        }
    }
}