Chapter 7, Problem 6E

Create a class Ledger that will record the sales for a store. It will have the attributes

• sale—an array of double values that are the amounts of all sales
• salesMade —the number of sales so far
• maxSales—the maximum number of sales that can be recorded and the following methods:
• Ledger (max) —a constructor that sets the maximum number of sales to max
• addSale (d) —adds a sale whose value is d
• getNumberOfsales —returns the number of sales made
• getTotalSales—returns the total value of the sales