public void Making() { _notification.StartNotification(); _time.Timing = 45; _ingredients.Ingredient(); _ingredients.AddSugar(); _ingredients.AddCream(); _ingredients.AddMilk(); _time.Timing = 30; _coffee.StartDrinding(); _coffee.StopDrinding(); _time.Timing = 15; _ingredients.AddWater(); _time.Timing = 0; _notification.RedyCoffee(); _notification.StopNotification(); }