Throwing Exceptions: ArgumentNullException : Predefined Exception « Language Basics « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Language Basics
3. Predefined Exception

using System;

class MainClass
{
   static void Main()
   {
      string arg = null;
      
      try
      {
         if (arg == null)
         {
            ArgumentNullException MyEx = new ArgumentNullException();
            throw MyEx;
         }
      }
      catch (ArgumentNullException e)
      {
         Console.WriteLine("Message: {0}", e.Message);
      }
   }
}

Message: Value cannot be null.