Calculate the volume of three spheres

ThreeSphereCalc.java

public class ThreeSphereCalc{

     public static void main(String []args){
        final double PI = 3.14159265358979;
        double radius = 10;
        double volume = 4.0/3.0*PI*radius*radius*radius;
        System.out.println("The sphere with a radius of "+radius+" has a volume of " + volume);
        radius = 20;
        volume = 4.0/3.0*PI*radius*radius*radius;
        System.out.println("The sphere with a radius of "+radius+" has a volume of " + volume);
        radius = 30;
        volume = 4.0/3.0*PI*radius*radius*radius;
        System.out.println("The sphere with a radius of "+radius+" has a volume of " + volume);
     }
}