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Question: Create an Exception class named GradeException that


Create an Exception class named GradeException that contains a static public array of valid grade letters (A, B, C, D, F, and I) that you can use to determine whether a grade is valid. Save the file as GradeException.java.
b. Write an application that displays a series of at least eight student ID numbers that you have stored in an array and asks the user to enter a letter grade for the student. Throw a GradeException if the user does not enter a valid letter grade as defined in the GradeException class. Catch the GradeException, and then display an appropriate message. In addition, store an I (for Incomplete) for any student for whom an Exception is caught. At the end of the application, display all the student IDs and grades. Save the file as TestGrade.java.

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