C#

using System;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Diagnostics;
using System.Runtime;
using System.Text;
public class Server
{
    public Server()
    {
       
    }
    public static void Main()
    {

        try
        {
            IPAddress ipAd = IPAddress.Parse("192.168.1.32"); //use local m/c IP address, and use the same in the client
            TcpListener myList = new TcpListener(ipAd, 8006);

            myList.Start();

            Console.WriteLine("The server is running at port 8006...");
           
            Console.WriteLine("The local End point is  :" + myList.LocalEndpoint);
            Console.WriteLine("Waiting for a connection.....");

            Socket s = myList.AcceptSocket();
            Console.WriteLine("Connection accepted from " + s.RemoteEndPoint);

            byte[] b = new byte[100];
            int k = s.Receive(b);
            Console.WriteLine("Recieved...");
            for (int i = 0; i < k; i++)
                Console.Write(Convert.ToChar(b[i]));

            ASCIIEncoding asen = new ASCIIEncoding();
            s.Send(asen.GetBytes("The string was recieved by the server."));
            Console.WriteLine("\nSent Acknowledgement");

            s.Close();
            myList.Stop();

        }

        catch (Exception e)
        {
            Console.WriteLine("Error..... " + e.StackTrace);
        }
    }
   
}

using System;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Diagnostics;
using System.Text;
public class Client
{
    public Client()
    {
       
    }
    public static void Main()
    {

        try
        {
            TcpClient tcpclnt = new TcpClient();
            Console.WriteLine("Connecting.....");
            tcpclnt.Connect("192.168.1.32", 8006); // use the ipaddress as in the server program

            Console.WriteLine("Connected");
            Console.Write("Enter the string to be transmitted : ");

            String str = Console.ReadLine();
            Stream stm = tcpclnt.GetStream();

            ASCIIEncoding asen = new ASCIIEncoding();
            byte[] ba = asen.GetBytes(str);
            Console.WriteLine("Transmitting.....");

            stm.Write(ba, 0, ba.Length);

            byte[] bb = new byte[100];
            int k = stm.Read(bb, 0, 100);
           
            for (int i = 0; i < k; i++)
                Console.Write(Convert.ToChar(bb[i]));

            tcpclnt.Close();
        }

        catch (Exception e)
        {
            Console.WriteLine("Error..... " + e.StackTrace);
        }
    }

}