using Java program //

implement a (). /:  ) highest – returns the highest grade  ) lowest – returns the lowest grade  ) number of grades – returns the number of grades the array  ) average – returns the average of all the grades  ) number of failing grades – takes a grade value returns the number of grades below the input grade value.  ) histogram – creates a histogram that allows you to visually inspect the frequency distribution of grades.        – | ****        80 – 89  | **********        –   | ********        60 – 69  | ****        <      | **Write a main method to test out this object. In the main program, allow the user to enter the grades into the array.  Since you would need to know the size of the array beforehand, you would prompt the user to first enter the number of grades and then prompt the user to enter each grade.  Valid grade values are 0 – 100 inclusive.

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