Exercise 8.5

package chapter8;

public class StaticFunctions {

        public static double cylinderVolume(double r, double h){
                        double cylinderVolume;
                        double circleArea;
                        circleArea = Math.PI * Math.pow(r, 2);
                        cylinderVolume = circleArea * h;
                        return cylinderVolume;
                }

          public static double cylinderSurface(double r, double h){
                        double cylinderSurface;
                        cylinderSurface = (2 * Math.PI * r * h) + (2 * Math.PI * Math.pow(r, 2));
                        return cylinderSurface;
                }

                public static double sphereVolume(double r){
                        double sphereVolume;
                        sphereVolume = (4/3) * Math.PI * Math.pow(r, 3);
                        return sphereVolume;
                }

                public static double sphereSurface(double r){
                        double sphereSurface;
                        sphereSurface = 4 * Math.PI * Math.pow(r, 2);
                        return sphereSurface;
                }

                 public static double cubeVolume(double h){
                        double cubeVolume;
                        cubeVolume = Math.pow(h, 3);
                        return cubeVolume;
                }

                public static double cubeSurface(double h){
                        double cubeSurface;
                        cubeSurface = 6 * (Math.pow(h, 2));
                        return cubeSurface;
                }
                public static double coneVolume(double r, double h){
                        double coneVolume;
                        coneVolume = (1/3) * Math.PI * Math.pow(r,2) * h;
                        return coneVolume;
                }
                public static double coneSurface(double r, double h){
                        double coneSurface;
                        double pyThag;
                        pyThag = Math.pow(r, 2) + Math.pow(h, 2);
                        coneSurface = (Math.PI * r) * (r + Math.pow(pyThag, .5));
                        return coneSurface;
                }



        }