// to find the perimeter and area of a circle given a value of radius.

// You should use Math.PI constant in your program. If radius is zero or less than zero then print " please enter non zero positive number ".

import java.util.Scanner;

public class Circle

{

public static void main(String[] args)

{

try (Scanner s = new Scanner(System.in)) {

System.out.print("Enter the Radius of the circle : ");

double radius= s.nextDouble();

double perimeter;

double area;

if(radius!=0 && radius>=0)

{

perimeter = 2*Math.PI*radius;

area = Math.PI * radius* radius;

System.out.println("Permetr of Circlr : "+perimeter);

System.out.print("Area of Circlr : "+area);

}

else

System.out.println("please enter non zero positive number");

}

}

}