Java:

2. Write an application that displays a series of at least 10 student ID numbers(that you have stored in an array) and asks the user to enter a test letter grade for the student. 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 entered from the application is valid. In your application, throw a GradeException if the user does not enter a valid grade. Catch the GradeException, and then display an appropriate message. In addition, store an 'l' (for incomplete) for any student for whom an exception is caught. At the end of the application, display all student ID's and grades. Save the files as GradeException.java and TestGrade.java