public class Demo2 { public static void main(String[] args) { Circle circle1 = new Circle(2); Circle circle2 = new Circle(4); circle1.count = 99; System.out.println( circle1.radius ); System.out.println( circle1.count ); System.out.println( circle2.radius ); System.out.println( circle2.count ); System.out.println(); circle1.count++; // Updates a static variable System.out.println( circle1.radius ); System.out.println( circle1.count ); // Changed System.out.println( circle2.radius ); System.out.println( circle2.count ); // Also changed --> shared! } }