You are required to design and implement (in Java) a program to manage the details of a Healthcare Information System (HIS). The objective of the system is to manage the details of patients, doctors, medicine, treatments and reports. ? Administrator has the rights to access the HIS. ? The system should be able to reduce the manual administration in managing the HIS information. ? The system should be able to track and manage the information about patient, doctors, treatments/diagnosis, lab test results, medicine and payment (including made by insurance). ? The system should be able to keep information of walk-in patients and patients with appointments. Keep track the doctors availability. ? Pharmacists will only give controlled medicine as prescribed by doctors only. However, non-controlled medicine can be bought over the counter. All medicine can be claimed by providing prove of payment. Payment has to be made at discharge counter. ? The system should provide a necessary reporting. You may model your design based on the scenario given above. The quality of your product will be based on how much detail you model the design as well as the level of completeness of your design and the actual product. a) Design and implement class(es) (in Java) enough functionality to allow the operation of the following test program (which you also design, implement, test and document).