Phone numbers and pin codes can be easier to remember when you find words that spell out the number on a standard phone pad. for example, instead of remembering the combination 5282, you can just think of java. write a recursive method that given a number, yields all possible spellings (which may or may not be real words). use the file included as a starting point. possible testing values are: 5282 26678837 7764726

Binary code is the right answer

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