// Application to calculate sphere volumes - shows syntax of methods

import java.io.*;

public class Volume
{
   static private double radius,volume;

   public static void main (String[] args)
   {
      /* uses method from Console class to read formatted input -
		prints the argument as a prompt, then reads a double
		terminated by a newline */

      radius = Console.readDouble("Type in the radius of the sphere: ");
      volume = sphereVolume(radius);

      System.out.println("Volume is " + volume + "\n");
   }

   // this method is called locally with one argument of type double
   // and returns a double

   static private double sphereVolume(double rad)
   {
      double vol;
      vol = (4.0/3.0) * Math.PI * Math.pow(rad,3);
      return vol;
   }
    
}