Create a requirements document and a Use Case Definition document and then design a Windows application based on the case project shown in figure 4-112. Before writing code, create an event-planning document for each event in the program. The YMCA has asked you to write a Windows application that its members can use to determine the total number of hours they have exercised during their lifetimes, assuming they exercise an average of 3 hours per work. All users should enter their first name, their birth date, and the current date. For both dates, ask for the month, day, and year separately in numeric form. To calculate the number of hours exercised, assume 365 days per year and 30 days per month. The program must display the user's name and the number of hours the user has exercised in his or her lifetime. The user can tap or click a Clear button to clear all entries and results. An Exit button must be available to close the application