public static void main(String []args){
        
        Person person1 = new Person("Fred");
        System.out.println("person 1:" + person1);
        Person person2 = (Person)person1.doClone();
        System.out.println("person 2:" + person2);
        
        Dog dog1 = new Dog("wooof!");
        System.out.println("dog 1:"+ dog1);
        Dog dog2 = (Dog)dog1.doClone();
        System.out.println("dog 2:" + dog2);
    }