using System;
using System.Net;
class AddressSample {
    public static void Main() {
        IPAddress test2 = IPAddress.Loopback;
        Console.WriteLine("Broadcast address: {0}",test2.ToString());
    }
}

   
     

   
  
using System;
using System.Net;
class AddressSample {
    public static void Main() {
        IPAddress test1 = IPAddress.Parse("192.168.1.1");
        Console.WriteLine("The test address is: {0}",  test1.ToString());
    }
}

   
     

   
  
using System;
using System.Net;
class MainClass {
    public static void Main(string[] args) {
        foreach (string comp in args) {
            try {
                IPAddress[] addresses = Dns.GetHostEntry(comp).AddressList;
                foreach (IPAddress address in addresses) {
                    Console.WriteLine("{0} = {1} ({2})",
                        comp, address, address.AddressFamily);
                }
            } catch (Exception ex) {
                Console.WriteLine("{0} = Error ({1})", comp, ex.Message);
            }
        }
    }
}

   
     

   

using System;
using System.IO;
using System.Net;

public class HttpPut {

  public static void Main(string [] args) {

    string url = "http://www.kutayzorlu.com/java2s/com/";
    string username = "user";
    string password = "password";
    string data = "This data should be written to the URL.";

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    request.Method = "PUT";
    request.Credentials = new NetworkCredential(username, password);
    request.ContentLength = data.Length;
    request.ContentType = "text/plain";

    using (StreamWriter writer = new StreamWriter(request.GetRequestStream( ))) {
      writer.WriteLine(data);
    }

    WebResponse response = request.GetResponse( );

    using (StreamReader reader = new StreamReader(response.GetResponseStream( ))) {
      while (reader.Peek( ) != -1) {
        Console.WriteLine(reader.ReadLine( ));
      }
    }
  }
}

           
          

   


using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;

public class NewMathClient
{
   public static int Main(string[] argv)
   {
      HttpChannel chan = new HttpChannel();
      ChannelServices.RegisterChannel(chan);
      MathClass obj = new MathClass();
      if (obj == null) 
         System.Console.WriteLine("Could not locate server");
      else
      {
         int a = Convert.ToInt32(argv[0]);
         int b = Convert.ToInt32(argv[1]);
         int c = obj.Add(a, b);
         Console.WriteLine("a + b = {0}", c);
         c = obj.Subtract(a, b);
         Console.WriteLine("a - b = {0}", c);
         c = obj.Multiply(a, b);
         Console.WriteLine("a * b = {0}", c);
         c = obj.Divide(a, b);
         Console.WriteLine("a / b = {0}", c);
      }
      return 0;
    } 
}


public class MathClass : MarshalByRefObject
{
   public int Add(int a, int b)
   {
     int c = a + b;
     return c;
   }

   public int Subtract(int a, int b)
   {
      int c = a - b;
      return c;
   }

   public int Multiply(int a, int b)
   {
      int c = a * b;
      return c;
   }

   public int Divide(int a, int b)
   {
      int c;
      if (b != 0)
         c = a / b;
      else
         c = 0;
      return c;
   }
}


           
          

   


using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;

public class MathClient
{
   public static int Main(string[] argv)
   {
      HttpChannel chan = new HttpChannel();
      ChannelServices.RegisterChannel(chan);
      MathClass obj = (MathClass)Activator.GetObject(
          typeof(MathClass), "http://127.0.0.1:9050/MyMathServer");
      if (obj == null) 
         System.Console.WriteLine("Could not locate server");
      else
      {
         int a = Convert.ToInt32(argv[0]);
         int b = Convert.ToInt32(argv[1]);
         int c = obj.Add(a, b);
         Console.WriteLine("a + b = {0}", c);
         c = obj.Subtract(a, b);
         Console.WriteLine("a - b = {0}", c);
         c = obj.Multiply(a, b);
         Console.WriteLine("a * b = {0}", c);
         c = obj.Divide(a, b);
         Console.WriteLine("a / b = {0}", c);
      }
      return 0;
    } 
}


public class MathClass : MarshalByRefObject
{
   public int Add(int a, int b)
   {
     int c = a + b;
     return c;
   }

   public int Subtract(int a, int b)
   {
      int c = a - b;
      return c;
   }

   public int Multiply(int a, int b)
   {
      int c = a * b;
      return c;
   }

   public int Divide(int a, int b)
   {
      int c;
      if (b != 0)
         c = a / b;
      else
         c = 0;
      return c;
   }
}

           
          

   


using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Http;


public class MathServer
{
   public static int Main()
   {
      HttpChannel chan = new HttpChannel(9050);
      ChannelServices.RegisterChannel(chan);
      RemotingConfiguration.RegisterWellKnownServiceType(
         Type.GetType("MathClass, MathClass"), "MyMathServer",
         WellKnownObjectMode.SingleCall);
      Console.WriteLine("Hit <enter> to exit...");
      Console.ReadLine();
      return 0;
    }
}


public class MathClass : MarshalByRefObject
{
   public int Add(int a, int b)
   {
     int c = a + b;
     return c;
   }

   public int Subtract(int a, int b)
   {
      int c = a - b;
      return c;
   }

   public int Multiply(int a, int b)
   {
      int c = a * b;
      return c;
   }

   public int Divide(int a, int b)
   {
      int c;
      if (b != 0)
         c = a / b;
      else
         c = 0;
      return c;
   }
}