public void Start(ClientConsole console) { console.PrintCustomersList(CustomerSingleton.Instance.Customers); int userMenuChoice = console.ChooseMenu(); bool validUser = false; if (userMenuChoice > CustomerSingleton.Instance.Customers.Count) { curCust = new Customer(console.GetString("Enter name: ")); CustomerSingleton.Instance.Customers.Add(curCust); validUser = true; } else { curCust = CustomerSingleton.Instance.Customers[userMenuChoice - 1]; if (curCust.PasswordCheck(console.GetString("Enter password: "******"Invalid password."); } }