public void Start() { string userInput; do { Console.WriteLine("Welcome! What would you like to do today?"); //Options Console.WriteLine("[0] Create a hero\n[1] Get all heroes"); userInput = Console.ReadLine(); switch (userInput) { case "0": Hero newHero = GetHeroDetails(); HeroBL.AddHero(newHero); Console.WriteLine($"Hero {newHero.Name} was created with a superpower of {newHero.superPowers.Peek()}"); break; case "1": List <Hero> allHeroes = HeroBL.GetAllHeroes(); foreach (var hero in allHeroes) { Console.WriteLine($"Hero {hero.Name}"); } break; } } while (!userInput.Equals("0") && !userInput.Equals("1")); }