PROGRAMMING - DKWizard

Implementation of singly linked list in C# using only one class.

			The following program is an attempt at implementing a simple, easy to-understand singly linked list in C#.
			Many great programs implement a singly linked list in C#. But what all of them have in common is the fact that they
			all use more than one class which is fine, but I wanted to challenge myself to make a singly linked list that uses only one 
			class and I also wanted to make it extremly simple so that everyone can understand it and learn from it.

			The code:
			
using System;

public class singleLinked 
{
  public string data;
  singleLinked next;
  singleLinked head;

  public static void Main()
  {
    singleLinked list = new singleLinked();
    list.Add("Node 1");
    list.Add("Node 2");
    list.Add("Node 3");
    list.Add("Node 4");
    list.Print();
    
  }
public void Add(string data)
{
   singleLinked newNode = new singleLinked();
   newNode.data = data;
   newNode.next = head;
   head = newNode;

}

public void Print()
{
    singleLinked currentNode = head;
    while (currentNode != null)
    {
      Console.WriteLine(currentNode.data);
      currentNode = currentNode.next;

    }
}

}
			
		

Simple TCP server/client in C#

 This is a very basic TCP server/client written in C# using sockets.   
	   
            The server and client use the localhost IP address. Alternatively, you can use something such as:
	     public static var DNS = Dns.GetHostEntry("example").AddressList[0];
	     to get the IP of a website (webserver). Keep in mind that servers can have multiple IP's so sometimes you may need to choose a different one from the address list.
		
	    
		The server:
using System; 
using System.Net;
using System.Net.Sockets;
using System.Text;
namespace TCP_server_client_using_Sockets;
public static class Program
{
    public static IPAddress address = IPAddress.Parse("127.0.0.1");
    public static int port = 1235;
    public static IPEndPoint endPoint = new(address, port);


    public static void Main()
    {
        Server();
    }
    public static void Server()
    {

        Socket listener = new(address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
        listener.Bind(endPoint);
        listener.Listen(10);
        var serverByte = new byte[1024];
        var handler = listener.Accept();
        Console.WriteLine("Enter a message for the client.");
        
      
        while (true)
        {
              var AbortKey = Console.ReadKey(true).Key;
           if (AbortKey != ConsoleKey.Escape)
           {
              var serverReceive = handler.Receive(serverByte, SocketFlags.None);
        var serverMessage = Encoding.UTF8.GetString(serverByte, 0, serverReceive);
        Console.WriteLine(serverMessage);

        
        var ackM = Console.ReadLine();
        var echoAckm = Encoding.UTF8.GetBytes(ackM);
        var sendAckm = handler.Send(echoAckm, 0);

        }
        else 
        {
            return;
        }
        
       
    }

    

 }
}

		The client: 
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
namespace TCP_server_client_using_Sockets;
public static class Program
{
    public static IPAddress address = IPAddress.Parse("127.0.0.1");
    public static int port = 1235;
    public static IPEndPoint endPoint = new(address, port);

public static void Main()
{
    Client();
}

public static void Client()
    {

        Console.WriteLine("Waiting for connection.");


        Socket socket = new(address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
        socket.Connect(endPoint);

        if (socket.Connected)
        {
            Console.WriteLine("Connected");

        }
        else
        {
            Console.WriteLine("Not connected");
        }
         
        Console.WriteLine("Enter a message for the server.");
        
       while (true)
       {
         var AbortKey = Console.ReadKey(true).Key;
        if (AbortKey != ConsoleKey.Escape)
        { 
            var sendMessage = Console.ReadLine();
        var byteMessage = Encoding.UTF8.GetBytes(sendMessage);
        var sMessage = socket.SendAsync(byteMessage, SocketFlags.None);
        var buffer = new byte[1024];

        var receiveMessage = socket.Receive(buffer);
        var result = Encoding.UTF8.GetString(buffer, 0, receiveMessage);
        Console.WriteLine(result);
    
        }

        else 
        {
            return;
        }
        
         
       }
        
    }


}
		

	   

Implementation of singly linked list in C# using only one class.

Simple TCP server/client in C#

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