Hello teacher I must apologize for missing an appointment for this week. I need to run some errands at my home. And yesterday I've got an final exam mathematics. So, I must focus on it. Separate class of user doesn't finish yet but, in my project I've put the new feature as a company product. other user can order product and the data will be saving into the database. User can print receipt I'll explain by picture and you can try it by your self.
Thank you for your kindness.