// Exercise 6.6: Sphere.java
// Calculate the volume of a sphere.
import java.util.Scanner;

public class Sphere
{
   // obtain radius from user and display volume of sphere
   public void determineSphereVolume()
   {
      Scanner input = new Scanner( System.in );

      System.out.print( "Enter radius of sphere: " );
      double radius = input.nextDouble();

      System.out.printf( "Volume is %f\n", sphereVolume( radius ) );
   } // end method determineSphereVolume

   // calculate and return sphere volume
   public double sphereVolume( double radius )
   {
      double volume = ( 4.0 / 3.0 ) * Math.PI * Math.pow( radius, 3 );
      return volume;
   } // end method sphereVolume
} // end class Sphere

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