Program10ArrayOperations

/* Eva Goins
 * Chapter 7 part 1
 * Description: Program demonstrates four different methods
 *      that utilize different operations on arrays. getTotal
 *      sums all of the array contents and returns a total.
 *      getAverage calls getTotal and uses the array's length
 *      to divide the total in order to get the average.
 *      getHighest compares a temp variable with the present
 *      contents of the array and returns the highest array.
 *      getLowest does the opposite.
 */

 public class Program10ArrayOperations
 {
    public static void main(String[] args)
    {
        double prices[] = {45.00, 63.13, 20.99, 139.88, 13.45};

        System.out.println("The total is: " + getTotal(prices));
        System.out.println("The average is: " + getAverage(prices));
        System.out.println("The highest is: " + getHighest(prices));
        System.out.println("The lowest is: " + getLowest(prices));
    }

    public static double getTotal(double[] array)
    {
        int index;
        double total = 0;

        for (index = 0; index < array.length; index++)
        {
            total += array[index];
        }

        return total;
    }

    public static double getAverage(double[] array)
    {
        double total = 0;
        total = getTotal(array);
        return total / array.length;
    }

    public static double getHighest(double[] array)
    {
        int index;
        double highest = array[0];

        for (index = 0; index < array.length; index++)
        {
            if (array[index] > highest)
            {
                highest = array[index];
            }
        }

        return highest;
    }

    public static double getLowest(double[] array)
    {
        int index;
        double lowest = array[0];

        for (index = 0; index < array.length; index++)
        {
            if (array[index] < lowest)
            {
                lowest = array[index];
            }
        }

        return lowest;
    }
 }