For the following exercises, use the incremental development methodology to implement the program. For each exercise, identify the program tasks, create a design document with class descriptions, and draw the program diagram. Map out the development steps at the start. Present any design alternatives and justify your selection. Be sure to perform adequate testing at the end of each development step. Write a program that accepts the unit weight of a bag of coffee in pounds and the number of bags sold and displays the total price of the sale, computed as follows: totalPrice = bagWeight * numberOfBags * pricePerLb: totalPriceWithTax = totalPrice + totalPrice * taxrate: Display the result in the following manner: Number of bags sold: 32 Weight per bag: 5 lb Price per pound: exist5.99 Sales tax: 7.25% Total price: exist 1027.88 Define and use a programmer-defined CoffeeBag class. Include class constants for the price per pound and tax rate with the values exist5.99 per pound and 7.25 percent, respectively