/**
 *
 * @author acer
 */
public class ObjectTracing {
    public static void main(String[] args) {


     Human h1 = new Human();
    Human h2 = new Human();
    h1.age = 21;
    h1.height = 5.5;
    System.out.println(h1.age);
    System.out.println(h1.height);
    h2.height = h1.height - 3;
    System.out.println(h2.height);
    h2.age = h1.age++;
    System.out.println(h1.age);
        System.out.println("================");
    h2 = h1;
    System.out.println(h2.age);
    System.out.println(h2.height);
    h2.age++;
    h2.height++;
    System.out.println(h1.age);
    System.out.println(h1.height);
    h1.age = ++h2.age;
    System.out.println(h2.age);
    System.out.println(h2.height);

}
}