Lab4CircleDemo.java

import java.util.Scanner;
 public class CircleDemo
 {
     public static void main(String[] args)
     {
         Scanner input = new Scanner(System.in);
         System.out.println("The number of Circles is: " + Circle.getNumberOfCircles());

          System.out.println("Please enter the radius of the Circle 1: ");
         Circle circle1 = new Circle(input.nextDouble());
         System.out.println("The number of circles is: " + circle1.getNumberOfCircles());

          System.out.println("Please enter the radius of the Circle 2: ");
         Circle circle2 = new Circle(input.nextDouble());
         System.out.println("The number of circles is: " + circle2.getNumberOfCircles());

          System.out.println("The Area of the first circle is: " + circle1.area());
         System.out.println("The Perimeter of the first circle is: " + circle1.circumference() + " cm");

          System.out.println("The Area of the second circle is: " + circle2.area());
         System.out.println("The Perimeter of the second circle is: " + circle2.circumference() + " cm");
     }
 }