Let's Calculate Area & Circumference Of A Circle Using Simple Java Program

  
import java.util.Scanner;
import java.lang.Math;

public class CircleArea {

    public static void main(String args[]){

        Scanner sc=new Scanner(System.in);

        double radius;
        double pi=Math.PI;
        

        System.out.println("Enter radius of the circle");
        radius=sc.nextDouble();
        sc.close();

        System.out.println("Area of the cirlce is "+(pi*radius*radius));
        System.out.println("Circumference of the circle is "+(2*pi*radius));
        
    }

}