Measure time for code execution

void Main()
{
    int startTick = Environment.TickCount;
    Thread.Sleep(1000);
    int endTick = Environment.TickCount;

    Console.WriteLine("Thread slept for {0} ms",    (endTick - startTick));
}

Lambda Expressions Sample

  using System;
   
  //A lambda expression is an anonymous function that can contain expressions and statements,
  //and can be used to create delegates or expression tree types.
   
  //All lambda expressions use the lambda operator =>, which is read as "goes to".
  //The left side of the lambda operator specifies the input parameters
  //(if any) and the right side holds the expression or statement block.
   
  //The lambda expression x => x * x is read "x goes to x times x."
   
  //This expression can be assigned to a delegate type.
   
  delegate string NoInputStrOutputDel ();
  delegate int IntInputIntOutputDel ( int i );
  delegate string MultiStrInputStrOutputDel ( string salutation , string firstName , string lastName );
   
  public class MyClass
  {
      public static void Main ()
      {
   
          NoInputStrOutputDel del1 = () => "Output without Input";
          Console.WriteLine ( del1 () );
   
          IntInputIntOutputDel del2 = x => x * x;
          Console.WriteLine ( del2 ( 5 ) );
   
          MultiStrInputStrOutputDel del3 = ( i , j , k ) => "Hello " + i + " " + j + " " + k;
          Console.WriteLine ( del3 ( "Mr." , "Ajit" , "Singh" ) );
   
          Console.ReadKey ();
   
      }
}