Have a class that extends the functionality of the single-entry class and holds the whole current database as a class object. (Hint: You can use an ArrayList behind-the-scenes to do this.) Create get method that can lookup single entry based on certain criteria (index number, search by criteria, etc.) You can overload your get method if you wish. You MUST save every entry added to the database to file. This entry must be able to

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability

E. i hope it's you done your thing