BOTH CLASSES MUST BE DONE IN JAVA,PLEASE TEST CODE BEFORE UPLOADING SOLUTION FOR BOTH CODES Write StudentGrades class that encapsulates the concept of student grades on a test, assuming student grades are composed of a list of integers between 0 and 100. Write the following methods: - A constructor with just one parameter, the number of students; all grades will be randomly generated. - Accessor, mutator, toString, and equals methods - A method returning an array of the grades sorted in ascending order. - A method returning an array of the grades sorted in descending order. - A method returning the highest grade. - A method returning the average grade. - A method returning the median grade (Hint: the median grade will be located in the middle of the sorted array of grades) - A method returning the mode (the grade that occurs the most often) (Hint: create an array of counters; count how many times each grade occurs; then pick the maximum in the array of counters; the array index is the mode. Write a client class to test all your methods