Lesson 2 - functions and enums

Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HelloPerson
{


    enum Language
    { 
        English, 
        German,
        French,
        Dutch
    }

    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("What is your name?");
            string name;
            name = Console.ReadLine();
            Console.WriteLine("Your name has " + CharacterCount(name) + " letters");
            string greeting;
            string article;
            switch(UserLanguage(name))
            {
                case Language.German:
                    greeting = "Guten tag, " + name; 
                    break;
                case Language.French: 
                    greeting = "Bonjour, " + name + "!"; 
                    break;
                case Language.English:
                    greeting = "Hello, " + name;
                    break;
                default:
                    throw new Exception("I don't understand " + UserLanguage(name));
            }

            // "Steve"
            // "Gimme an S! Gimme a T! Gimme an E! Gimme an V! Gimme an E! ... Iiiit's Steve!"
            foreach (char c in name)
            {
                char upperCaseLetter = Char.ToUpper(c);
                article = TheArticleFor(c);
                Console.WriteLine("Gimme " + article + " " + upperCaseLetter + "!");
            }

        

            Console.WriteLine(greeting);
            Console.ReadLine();
        }

        private static int CharacterCount(string name)
        {
            int count = 0; 
           foreach (char c in name)
           {
               count = count + 1;
           }
           return count;
        
        }

        private static Language UserLanguage (string name)
        {

            switch (name)
            {
                case "Greta":
                case "Hans":
                    return Language.German;
                case "Pierre":
                    return Language.French;
                case "Jens":
                    return Language.Dutch;
                default:
                    return Language.English;
                  
            }

        }
        private static string TheArticleFor(char anEnglishLetter)
        {
            string article;
            char lowerCaseLetter = Char.ToLower(anEnglishLetter);

            switch (lowerCaseLetter)
            {
                case 'a':
                case 'e':
                case 'i':
                case 'o':
                case 'u':
                case 's':
                    article = "an";
                    break;
                default:
                    article = "a";
                    break;
            }

            return article;
        }
    }
}