URI Problem 1002 Solution in Java

Problem Details Link

Solution:

import java.util.Scanner;

/**
 * @Author : Muhammad Harun-Or-Roshid
 * @E-mail : md.parvez28@gmail.com
 * @Date   : Oct 5, 2016
 * @Time   : 7:52:48 PM
 */
public class Uri1002 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double R = sc.nextDouble();
        double A = (3.14159*R*R);
        System.out.printf("A=%.4f\n",A);
    }
}