Calculates Volume and Surface Area of a sphere

Sphere.java

import java.util.Scanner;
import java.text.*;
 
public class Sphere
{
    public static void main(String[] args)
	{
	
		double pi = Math.PI;
		double radius, volume, surfaceArea;
		
		// Get Radius
		Scanner scan = new Scanner(System.in);
		radius = scan.nextDouble();
		
		// Calculate volume/area
		volume = (double)Math.pow((radius), 3) * pi * (4.0/3.0);
		surfaceArea = Math.pow((radius), 2) * pi * 4;
		
		// Format values
		DecimalFormat df = new DecimalFormat("0.####");
		
		// Output values
		System.out.println("Volume: " + df.format(volume));
		System.out.println("Surface Area: " + df.format(surfaceArea));
	}
}