Question: using 2D Array
Write a JAVA program using 2D Array to auto-grade exams. For a class of N students, your program should read letter answers (A, B, C, D) for each student. Assume there are 5 questions in the test. Your program should finally print the grade percentage (out of 100%) of each student, and also the class average. Define the exam answer key as Final Array in your program.