Java program.

The system should be comprised of at least two classes together with a controlling class which provides a menu driven program.

As an example, consider a system that manages centres which test members of the public to see if they have a virus. A very simple structure for such a system might look like the one shown below:

The system must be capable of keeping permanent records.

Thank you.

A possible (very simple) menu might be as follows: Virus Testing System 1. Add a test centre 2. Get detadis of a test centre 3. Make an appointment 4. List appointments 5. Delete an appointment 6. Record test result 7. Save and quit