Problem:
Circle

Write a program which calculates the area and circumference of a circle for given radius r.

Input

A real number r is given.

Output

Print the area and circumference of the circle in a line. Put a single space between them. The output should not contain an absolute error greater than 10-5.

Constraints

0 < r < 10000

Sample Input 1

2

Sample Output 1

12.566371 12.566371

Sample Input 2

3

Sample Output 2

28.274334 18.849556

Solution in JAVA (judge verdict: Wrong Answer)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

class Main {
	public static void main(String[] args) throws IOException {
		//Scanner scanner = new Scanner(System.in);
		Scanner scanner = new Scanner("2");
		int r = scanner.nextInt();
		System.out.printf("%1.6f %1.6f",method01(r), method02(r)); 
		 }
	public static double method01(int r){
		double x = Math.PI;
		return (r * 2 * x);
		}
	public static double method02(int r){
		double x = Math.PI;
		return (r * r * x);
	}
}