Visit www.myprogramminglab.com to complete select exercises online and get instant feedbac...

Visit www.myprogramminglab.com to complete select exercises online and get instant feedback.

Exercise

First, complete Programming Project.

Modify the main method with a loop so that an arbitrary number of BoxOfProduce objects are created and substitutions are allowed for each box. Add a menu so the user can decide when to stop creating boxes.

You would like to throw in a free recipe flyer for salsa verde if the box contains tomatillos. However, there are only five recipe flyers. Add a static variable to the BoxOfProduce class that counts the number of recipe flyers remaining and initialize it to 5. Also add an instance variable that indicates whether or not the box contains a recipe flyer and modify the toString() method to also output “salsa verde recipe” if the box contains a recipe flyer. Finally, add logic inside the class so that if the box contains at least one order of tomatillos then it automatically gets a recipe flyer until all of the recipe flyers are gone. Note that a box should only get one recipe flyer even if there are multiple orders of tomatillos.

Test your class by creating boxes with tomatillos from your menu until all of the flyers are gone.

Project

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Exercise

A comma-separated values (CSV) file is a simple text format used to store a list of records. A comma is used as a delimiter to separate the fields for each record. This format is commonly used to transfer data between a spreadsheet or database. In this Programming Project, consider a store that sells five products abbreviated as A, B, C, D, and E. Customers can rate each product from 1-5, where 1 is poor and 5 is excellent. The ratings are stored in a CSV file where each row contains the customer’s rating for each product. Here is a sample file with three customer ratings:

A, B, C, D, E3, 0, 5, 1, 21, 1, 4, 2, 10, 0, 5, 1, 3

In this file format, the first line gives the products. The digit 0 indicates that a customer did not rate a product. In this case, the first customer rated A as 3, C as 5, D as 1, and E as 2. Product B was not rated. The third customer rated C as 5, D as 1, and E as 3. The third customer did not rate A or B.

Create a text file in this format with sample ratings. Then, write a program that reads in this text file and extracts each rating using the StringTokenizer class. Finally, the program should output the average rating for each product. Customers that did not rate a product should not be considered when computing the average rating for that product. Your program can assume there will always be exactly five products but it should work with an arbitrary number of customer ratings.