Android Studio App with Firebase

The application will be an electronic queue system. In official institutions such as banks, the cashier queue will be taken without being there and the queue will run at the same time as the time spent on the road. They will be able to join the queue without wasting time.

There are login and register system
-UserTable
Usertype
Name
Surname
password
telephone number
UserID

-CompanyTable
Company name
Company adress
Company ID

-QueueTable
Queue Limit
Queue ID
Queue Name
Company ID

-Cities Table
City name(Eskişehir,Ankara,İzmir those are the cities we are going to use)
City ID

-Companies and Cities Table
Company ID
City ID

Last of all we are need to have add,edit,delete functions for all tables in java

The queue will run on the real time database. A user can be added or removed from the queue with the information sent through the application.