static void Main(string[] args) { string prodPath = System.Environment.GetEnvironmentVariable("BANGAZON_CLI_DB"); DatabaseConnection db = new DatabaseConnection(prodPath); DatabaseStartup databaseStartup = new DatabaseStartup(db); MainMenu menu = new MainMenu(); CustomerManager cm = new CustomerManager(db); int choice; // When the user enters the system show the main menu do { choice = menu.Show(); switch (choice) { case 1: // Displays the Create Customer Menu CreateCustomer.CreateCustomerMenu(cm); break; } }while (choice != 9); menu.Show(); }