UmbrellaWizard.cs

//Application using example code from C# 5.0 Pocket Reference, page 28
//http://shop.oreilly.com/product/0636920023975.do
using System;

namespace UmbrellaWizard
{
    class Program
    {
        static void Main()
        {
            bool Rainy = false;
            bool Sunny = false;
            bool Windy = false;
            bool Umbrella = false;
            string input;

            Console.WriteLine(":::::::::::::: Umbrella Wizard! ::::::::::::::");

            Console.Write("How's the weather outside? Is it rainy? (yes or no)");
            input = Console.ReadLine();

            if (input == "yes")
            {
                Rainy = true;
            }

            Console.Write("Is it sunny? (yes or no)");
            input = Console.ReadLine();

            if (input == "yes")
            {
                Sunny = true;
            }

            Console.Write("Is it windy? (yes or no)");
            input = Console.ReadLine();

            if (input == "yes")
            {
                Windy = true;
            }

            Umbrella = UseUmbrella(Rainy, Sunny, Windy);

            if (Umbrella)
            {
                Console.WriteLine("The umbrella wizard says take an umbrella with you!");
            }
            else
            {

                Console.WriteLine("The umbrella wizard says no umbrella today!");
            }

            //the next line keeps the console window open while you are testing in Visual Studio
            Console.ReadKey();

        }
        
        static bool UseUmbrella(bool rainy, bool sunny, bool windy)
        {
            return !windy && (rainy || sunny);
        }
    }
}