L. A numeric integer grade is between 50 and 99. Using integer division or otherwise obtain a int value that is 5, 6, 7, 8, or 9 from the numeric grade. Write code using a switch statement using this number in the selector expression that assigns letter grades based on this 10 point scheme: if the numeric grade is not less than 90, the letter grade is an A, if the numeric_grade is not less than 80, the letter grade is a B, if the numeric_ grade is not less than 70, the letter_grade is C, if the numeric_grade is not less than 60, the letter_grade is D, otherwise the letter grade is F