//**************************************************************
// Sample Program
//**************************************************************

import java.net.*;
import java.io.*;

public class SocketServer
 {

  public static void main(String args[])
  {
     ServerSocket server = null;
     Socket client = null;
     BufferedReader InFromClient = null;
     PrintWriter OutToClient = null;
     String line;
     try
     {
       //*****************************************************************
       //***** Your souce code should be here to do the following*********
       // (1) Construct an object of ServerSocket and name it server
       //*****************************************************************
       //*****************************************************************
	 System.out.println("Socket Open on Port 4444");
     }
     catch (IOException e)
     {
      System.out.println("Could not listen on port 4444");
      System.exit(-1);
     }

     try
     {
       //*****************************************************************
       //***** Your souce code should be here to do the following*********
       // Note: Please find the information on accept() method of ServerSocket
       // (1) call accept() of an object of ServerSocket and
       // (2) assign the result to an Socket object named "client" which
       //     defined above.
       //*****************************************************************
       //*****************************************************************
     }
     catch (IOException e)
     {
      System.out.println("Accept failed: 4444");
      System.exit(-1);
     }
     try
     {
      //************************************************************
      //*** Your source code should be here to print ***************
      // 	(1) Construct an object of BufferedReader to receive
      //            a text from client and assign to InFromClient
      //	(2) Construct an object of PrintWriter to send
      //            the text back to the server and assign to OutToClient
      //************************************************************
      //************************************************************
     }
     catch (IOException e)
     {
      System.out.println("Accept failed: 4444");
      System.exit(-1);
     }
     while(true)
     {
       try
       {
         //************************************************************
         //*** Your source code should be here to print ***************
         // 	(1) readline() from InFromClient and assign to "line"
         //************************************************************
         //************************************************************

        // connection closed by client
	if(line.equalsIgnoreCase("cr"))
	{
	 System.out.println("Connection Closed Client");
	 break;
	}

        System.out.println("Text from Client : "+line);

	//Send data back to client with stamp

        //************************************************************
        //*** Your source code should be here to print ***************
        // 	(1) println() to the OutToClient
        //************************************************************
        //************************************************************

       }
       catch (IOException e)
       {
        System.out.println("Read failed");
        System.exit(-1);
       }

     }
     try
     {
        InFromClient.close();
        OutToClient.close();
        server.close();
     }
     catch (IOException e)
     {
        System.out.println("Could not close.");
        System.exit(-1);
     }

  }
 }