While Loop Graduation

import java.util.Scanner;

public class Graduation {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String student = scanner.nextLine();
        double totalGrades = 0;
        int classCount = 0;

        while (classCount < 12){
            double grade = Double.parseDouble(scanner.nextLine());

            if (grade >= 4.00){
                classCount++;
                totalGrades += grade;
            }
        }

        System.out.printf("%s graduated. Average grade: %.2f",student,totalGrades / 12);
    }
}