Volume of Hemisphere

import java.util.Scanner;
class VolumeofHemisphere{

 public static void  main(String[] args) {
 
   float radius;
   float volume;

   Scanner sc = new Scanner(System.in);

   System.out.print("Enter radius of the hemisphere: ");
   radius = sc.nextInt();

   volume = (float)((2 * 3.14 * radius)/3);

   System.out.println("Volume of hemisphere is :" + volume);

    }
  }