An online store shows a collection of products that the users can purchase. Each product (or item) has a unique ID. Similarly, each user has a unique ID. Users are allowed to rate items by giving them a value between 1 and 5, with 1 representing the worst rating and five representing the best rating. You are given a file that contains the ratings that different users gave for various items. Each line in this file holds three values, namely, the user ID, the item ID and the rating value. For example, this line: 173 215 3 Shows that the user with ID 173 has rated the item with ID 215, and she gave that item a rating of 3. You can assume that the user IDs run in sequence starting at 0, and the same applies to the item IDs. You are required to write a Java program to read in all the user-item ratings, compute the average rating per item, and the average rating per user, and print the average rating for each user and for each item. Start by analyzing your problem. Your problem analysis should clearly state: 1. The input to your program 2. The output of your program 3. The different modules of your program To define your modules, think about how to divide your problem into sub-problems that each of them needs to be solved. 4. The algorithm for each module, and for the whole program. The algorithm for the program should simply list the sequence in which the various modules will be invoked.