How to generate an auto ID (or Auto Number)

[general07z]

Hello,

This code is for (hospital management system).

This code allow you to add patients.

There are two types of patients. which is:
1. Normal patient.
2. Critically ill patient.

once you added any patient. You will be able to show all patient using "ShowAllPatient;" method. -> i want the Auto-increment ID Number to appear for each patient has been added.

And you will be able to call a patient to provide a hospital services for him/her using "GetNextPatient;" method.


I need to generate an Auto-increment Number for each (patient) has been added. (Auto-increment Number) but it just should be different for each patient. For example the first patient will have 1, The second patient will have 2. etc. The Auto-increment number should appear for each patient.

i really tired a lot but i could not find a solution.