HDU 2002 (Java)

计算球的体积

import java.util.Scanner;
public class Main {
    public static void main(String[]args)
    {
    	Scanner in = new Scanner(System.in);
    	while(in.hasNext())
    	{
    		double r = in.nextDouble();
    		double v = 3.1415927*r*r*r*4.0/3.0;
    		System.out.format("%.3f",v).println();
    	}
    	in.close();
    }
}