Write a java program that consists of a class named ExerciseI2 with the following:

The class variable: static Scanner scan;

the method main,

the class (static) method double [ ] readTestScores( int size ),

The instance method char getLetterGrade(double score),

The class (static) method void printComment(char grade), and

The instance method void printTestResults(double [ ] testList).

Method readTestScores( int size ) receives a positive integer value n as argument, read (using the Scanner object scan) n test scores into an array and then returns that array.

Method getLetterGrade(double score) receives a students score as a value parameter, determines the corresponding letter grades, and returns it to the calling method. The letter grade is determined as follows:

if:

score >= 90 A

80 <= score < 90 B

70 <= score < 80 C

60 <= score < 70 D

score < 60 F

Method printComment(char grade) receives a students letter grade as a value parameter and prints the corresponding comment. The comment is determined as follows:

A very good

B good

C satisfactory

D need improvement

F poor

Method printTestResults(double [ ] testList) receives an array of test scores and prints a table with three columns consisting a test score in the first column, the corresponding letter grade in the second column and the corresponding comment in the third column as follows:

Test Score Letter Grade Comment

The letter grade is determined by calling the method getLetterGrade( ) and the comment is determined by calling the method printComment( ).