2. Write a program that reads a student's name together with his or her test score. The program should then compute the average test score for each student and assign the appropriate grade, A, B, C, etc. Your program must use the following methods:

a. A value-returning method average, to determine the average of the five test scores for each student.
b. A void method displayGrade, to display each student's grade to the file.
c. Test your program with the following data. Read the data to a file and output to a file.

Johnson 85 83 77 91 76
Aniston 80 90 95 93 48
Cooper 78 81 11 90 73
Gupta 92 83 30 69 87
Blair 23 45 96 38 59
Clark 60 85 45 39 67
Kennedy 77 31 52 74 83
Bronson 93 94 89 77 97
Sunny 79 85 28 93 82
Smith 85 72 49 75 63