Your GradeChanger class will enable the user to replace a student's given grade in a course with a new one, to add a new course grade, and to compute the GPA.

Your class will have

1.two private instance variables that store the total credits earned in all courses (an int) and the total grade points earned (a double)

2.A constructor with two parameters - total credits and GPA - which will be used to initialize the instance variables

F total grade points is not a construction parameter; GPA is.Your constructor will initialize total grade points to GPA x total credits

3.An accessor ("get") method that returns the total credits

4.An accessor ("get") method that returns the total grade points

5.A mutator ("set") method that adds the grade for a new course. This method will have 2 parameters - the number of credits and the numeric grade earned