using System;using System.Threading;///<summary>/// A time delay of 900..1100 milliseconds///</summary>namespace RobvanderWoude{ class WaitASecond {  static void Main( string[] args )  {   // Choose a random delay between 900    //and 1100 milliseconds   Random randomNums = new Random( );   int delay = randomNums.Next( 900, 1100 );   // Display the actual time delay    //if ANY command line parameter was passed   if ( args.Length > 0 )   {    Console.WriteLine("waiting {0} milliseconds...",delay);   }   // Now wait...   Thread.Sleep( delay );  } }}