Create a program named PaintingEstimate whose Main() method prompts a user for length and width of a room in feet. Create a method that accepts the two values and then computes the cost of painting the four walls of a room, assuming the room is rectangular and has four full walls and a height of 9 feet. The price of the job is $6 per square foot. Return the painting cost to the Main() method, and display it.

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