PP2_9

import java.text.DecimalFormat;
import java.lang.Math;
import java.util.Scanner;
public class radius
{
    public static void main (String[] args)
    {
        //double
        final double VOLUME, SURFACE_AREA;
        double pi = Math.PI;
        
        //scanner
        Scanner keyboard = new Scanner(System.in);
        System.out.print("What is the radius? ");
        int r = keyboard.nextInt();
        
        //math
        VOLUME = (double)(pi * Math.pow(r, 3) * 3/4);
        SURFACE_AREA = (double)(4 * pi * Math.pow(r, 2));

        // four decimal places
        DecimalFormat decimal = new DecimalFormat("0.####");
        
         //print volume and surface area
        System.out.println("The volume is " + decimal.format(VOLUME) + " The surface area is " + decimal.format(SURFACE_AREA));
    } //end main
} //end class radius