For this exercise a program is open a socket to localhost on port 256 and send the message "hello socket world" before closing the socket.

Catching any exceptions or errors is not required.




using System;
using System.IO;
using System.Net.Sockets;
 
class Program {
    static void Main(string[] args) {
        TcpClient tcp = new TcpClient("localhost", 256);
        StreamWriter writer = new StreamWriter(tcp.GetStream());
 
        writer.Write("hello socket world");
        writer.Flush();
 
        tcp.Close();
    }
}