Data Type C# Tutorial

using System;
class MainClass
{
   static void Main(string[] args)
   {
      ushort sh = 2000;
      byte sb;
      sb = checked((byte)sh);              
      Console.WriteLine("sb: {0}", sb);
   }
}
Unhandled Exception: System.OverflowException: Arithmetic operation resulted in an overflow.
at MainClass.Main(String[] args)