Listing05.30.RethrowingAnException.cs

#pragma warning disable CS0162 // Unreachable code detected
#pragma warning disable CS1058 // A previous catch clause already catches all exceptions
#pragma warning disable CS0168 // Variable is declared but never used
namespace AddisonWesley.Michaelis.EssentialCSharp.Chapter05.Listing05_30;

public class ThrowingExceptions
{
    public static void Main()
    {
        try
        {
            Console.WriteLine("Begin executing");
            Console.WriteLine("Throw exception");
            throw new Exception("Arbitrary exception");
            Console.WriteLine("End executing");
        }
        catch (FormatException exception)
        {
            Console.WriteLine(
                "A FormatException was thrown");
        }
        #region INCLUDE
        // ...
        catch (Exception exception)
        {
            Console.WriteLine(
                "Rethrowing unexpected error:  "
                + $"{ exception.Message }");

            throw;
        }
        // ...
        #endregion INCLUDE
        catch
        {
            Console.WriteLine("Unexpected error!");
        }

        Console.WriteLine(
            "Shutting down...");
    }
}