Write a class encapsulating the concept of student grades on a test assuming student grades are composed of a list of integers between 0 and 100 (instance variable is an array of integers). Write the following methods: - A constructor with just one parameter, the number of students; all grades can be randomly generated. No default constructor. - Accessor, mutator, toString and equals methods - A method returning an array of the grades sorted in ascending order (adapt the selection sort from the textbook). - A method returning the highest grade - A method returning the average grade - A method returning the median grade (Hint: The median of an grade will be located in the middle of the sorted array of grades) - A method returning the mode (The grade that occurs 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 the methods in your class. Use xample08_11_12 as a guide. Do not use any Java Built-In classes like rays (sorting, comparing, etc.) to solve this problem, use the amples in this chapter and modify them to solve this