You have been hired by a college professor to process quiz grades for a class. The particular class in question is a self-paced course, where students work through materials and take quizzes on their own schedule. The course can be customized for different students, so not all students will take the same quizzes, or even the same number of quizzes. In addition, students may retake a quiz as many times as they choose, with the last score being the one that counts.

You are to read in student quiz grades from a file, where each line of the file is of the form:

  LAST_NAME FIRST_NAME QUIZ_NUMBER POINTS_EARNED POINTS_POSSIBLE

For example, the line

  Smith Jane 4 8 10

specifies that Jane Smith took quiz #4 and earned 8 out of a possible 10 points. You may assume that student names do not contain spaces, and that the quiz number and point values are all non-negative integers.

Your program should read in and process all of the quiz grades from a file (whose name is entered by the user). After all of the grades have been processed, the final quiz average for each student should be displayed.

• For 60% credit: Your program may ignore the possibility of a quiz being taken more than once. For each student, there should be a line of output that contains the student's name followed by his/her average. The order in which the student averages are displayed is not important.
• For 80% credit: Your program must allow for a student to take the same quiz more than once. The last entry for the quiz is the grade that counts toward the student's average. As before, the order in which the student averages are displayed is not important.
• For full credit: Your program must allow for retaken quizzes and should display the student averages in descending order. That is, the student with highest average should be listed first, followed by the next highest average, and so on. If there are two or more students with the same average, they should be listed alphabetically by name (last name, then first name).

For example, suppose the file specified by the user contained the following:

    Smith Jane 1 3 5
    Bluejay Billy 1 8 8
    Davies Joel 2 1 5
    Bluejay Billy 2 13 15
    Smith Jane 3 2 3
    Smith Jane 1 5 5

    Bluejay Billy 91.30434782608695
    Smith Jane 87.5
    Davies Joel 20

As with HW1, you must demonstrate good programming style when completing this assignment, including the appropriate use of Javadoc-style comments for all classes and methods. The interface for your program is entirely up to you. It need not be fancy, but it must at least allow the user to enter a file name and view the results. You may choose to use the GUI builder that comes with NetBeans if you wish.