using System;

using System.IO;                    

public class Program

{

    public static void Main()

    {

        StreamReader sr=null;

        try{

            sr= new StreamReader(@"Desktop\samplepk.txt");

            Console.WriteLine(sr.ReadToEnd());

                sr.Close();

            }

        catch(Exception)

        {

            Console.WriteLine("Please Check if file exists");

           //Console.WriteLine(e.Message);

            //Console.WriteLine("\n\n\n");

            //Console.WriteLine(e.StackTrace);//stack trace will show the error line

        }

        finally//irrespective there is error or not finally block will get executed

        { 

            if(sr!=null)

            {

         sr.Close();

            }

        Console.WriteLine("Finally block executed and all resources are released");}

    }

}