CircleCalculations

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter circle radius | r = ");
        double radius = Double.parseDouble(scanner.nextLine());
        System.out.println("Area of the circle = " + Math.PI *radius*radius);
        System.out.println("Perimeter of the circle = " + Math.PI*2*radius);

    }
}