Write a class GradeData that is based on two parameters: pointsEarned and pointsPossible. The class should include a constructor that accepts those two parameters in that order, and four methods:
getPointsEarned() returns that value
getPointsPossible() returns that value
calculatePercentage() returns a double value as a percentage between 0 and 100
getLetterGrade() returns a String value based on the result calculated by the .calculatePercentage() method. Use the following percentage distribution to determine the letter grade:
Write a GradeDataTester program with a main() method that demonstrates the use of the GradeData class.