Java programming using IDE NetBeans

Detailed Question: Must use file operations, exception handling, recursive programming (to calculate averages), and encapsulation (or inheritance) in the program

Must have four java files and compile together.

Program for a grading system to be used by students and professors

Student uses: view all course grades, calculate current GPA

GPA scale:

97+ = A+ = 4.00

93+ = A = 4.00

90+ = A- = 3.67

87+ = B+ = 3.33

83+ = B = 3.00

80+ = B- = 2.67

77+ = C+ = 2.33

73+ = C = 2.00

70+ = C- = 1.67

70- = F = 0.00

Professor use: view grades in one course, calculate average of each assignment and overall, add and edit new grades.

Attachment:- Grading System Assignment.zip