/// Example used in blog

using System;

​

public class Program

{

    public static void Main()

    {

        UsageWithTryCatch();

    }

​

    public static void UsageWithTryCatch()

    {

        try

        {

            Blender someFancyBlender = new Blender();

            someFancyBlender.PowerOn();

            someFancyBlender.BlendAllIngredients();

        }

        catch (NoElectricityException)

        {

            Console.WriteLine("There is currently no electricity available. Try to blend some time later.");

        }

        catch (Exception)

        {

            // I have put this here to explicitly state I don't want to handle other exceptions, you can off course leave this exception branch out

            throw;  

        }

    }

}

​

public class Blender

{

    public void BlendAllIngredients()

    {

        // Implement some cutting edge technology ;-)

    }

​

    public void PowerOn()

    {

        // For some reason there is no electricity, we cannot recover from this, the Blender will never work...

        throw new NoElectricityException();

    }

}

​

public class NoElectricityException : Exception

{

    public NoElectricityException() : base("There is no electricity available")

    {

    }

}