public class P424 {
public static void displayDiameter(Sphere thing) {
System.out.println("The diameter is "
+ thing.diameter() + ".");
} // end displayDiameter


static public void main(String[] args) {

Sphere mySphere = new Sphere(2.0);
Ball myBall = new Ball(2.0, "Volleyball");
displayDiameter(mySphere); // mySphere's diameter
displayDiameter(myBall); // myBall's diameter
myBall.displayStatistics();
mySphere.displayStatistics();


} //end main

} // end P424