P. 32 Ex. 10.6

// Shavit Borisov
// CW

import java.util.Scanner;

public class GradesAverageDifference {

    public static void main(String[] args)

    {
        Scanner in = new Scanner (System.in);

        final int NUM_OF_GRADES = 10;

        int[] grades = new int[NUM_OF_GRADES];
        int sumOfGrades = 0;
        double averageGrade;
        double difference;

        for(int i = 0; i < grades.length; i++)
        {
            System.out.print("Enter a grade: ");
            grades[i] = in.nextInt();
            sumOfGrades += grades[i];
        }

        averageGrade = (double)sumOfGrades / grades.length;

        System.out.println("The scores below average are: ");

        for(int i = 0; i < grades.length; i++)
        {
            difference = Math.abs(grades[i] - averageGrade);
            System.out.printf("grades[%d] => %.2f difference from average grade ~%.2f~\n", i, difference, averageGrade);
        }

        in.close();
    }
}