/* Gets the student's score from the commandline and prints out his/her grade using this grading scheme:
        91-100 A
        81-90  B
        71-80  C
        61-70  D
        <= 60  F
*/

public class Grade {
    public static void main(String[] args) {
        int score = Integer.parseInt(args[0]);
        char grade = ' ';

        /* This demonstrates nested if statement. */
        if (score <= 60)
            grade = 'F';
        else if (score <= 70)
            grade = 'D';
        else if (score <= 80)
            grade = 'C';
        else if (score <= 90)
            grade = 'B';
        else
            grade = 'A';

        System.out.printf("Score of %d gains you a grade of %c.%n", score, grade);
    }
}