/**
 * Exercise 5.7 p 156<br>
 * Each of these method is an attempt to compute the average of 3 integers
 * as accurately as possible. None of them is correct. There are syntax and
 * logical errors. Find the error(s) in each one of them.<br>
 * Complete also the last method to display a number of hours as
 * hours, minutes and seconds.
 */

public class Exercise57
{
    public double average3A(int n1, int n2, int n3)
    {
        return (double)n1 + (double)n2 + (double)n3/3.0;
    }

    public double average3B(int n1, int n2, int n3)
    {
        double result;
        result = new ((n1+n2+n3)/3.0);
        return result;
    }

    public double average3C(int n1, int n2, int n3)
    {
        double result;
        result = (double)(n1+n2+n3)/3.0);
        return result;
    }

    public double average3D(int n1, int n2, int n3)
    {
        return (double(n1)+double(n2)+double(n3))/3;
    }

    /**
     * Extra pratice: display a number of hours as hh:mm:ss
     */
    public void printAsHMS(double hours)
    {
    }
}