Argument Demo (from Savitch)

import java.util.Scanner;

// A demonstration of using indexed variables as arguments.
public class ArgumentDemo
{
    public static void main(String[] args)
    {
        Scanner keyboard = new Scanner(System.in);
        System.out.println("Enter your score on exam 1:");
        int firstScore = keyboard.nextInt( );
        int[] nextScore = new int[3];
        
        for (int i = 0; i < nextScore.length; i++)
            nextScore[i] = firstScore + 5 * i;
            
        for (int i = 0; i < nextScore.length; i++)
        {
            double possibleAverage = getAverage(firstScore, nextScore[i]);
            System.out.println("If your score on exam 2 is " + nextScore[i]);
            System.out.println("your average will be " + possibleAverage);
        }
    }

    public static double getAverage(int n1, int n2)
    {
        return (n1 + n2) / 2.0;
    }
}