private void ApplicationLoop()
        {
            AppEnum.MenuOptions userMenuChoice;

            ConsoleView.DisplayTitleScreen();

            while (active)
            {
                userMenuChoice = ConsoleView.GetUserMenuOption();

                switch (userMenuChoice)
                {
                case AppEnum.MenuOptions.ViewAllFirearms:
                    ListAllFirearms();
                    break;

                case AppEnum.MenuOptions.AddFirearm:
                    AddFirearm();
                    break;

                case AppEnum.MenuOptions.DeleteFirearm:
                    DeleteFirearm();
                    break;

                case AppEnum.MenuOptions.UpdateFirearm:
                    UpdateSkiRun();
                    break;

                case AppEnum.MenuOptions.DisplayFirearmInfo:
                    DisplayFirearmDetail();
                    break;

                case AppEnum.MenuOptions.QueryBy:
                    QueryFirearmsById();
                    break;

                case AppEnum.MenuOptions.Quit:
                    active = false;
                    break;

                default:
                    break;
                }
                ;
            }
            ConsoleView.DisplayExitPrompt();
        }