Calculating radius and area of a circle.

 import java.util.*;

public class printCir{

public static void main(String args []){

Scanner sc = new Scanner(System.in);

double Radius = sc.nextDouble();

//double perimeter = 2*Math.PI*Radius;

//double area = Math.PI*Radius*Radius;

System.out.println("Perimeter of circle is :"+2*Math.PI*Radius);

System.out.print("Area of Circle is :"+Math.PI*Radius*Radius);

}

}