相关疑难解决方法(0)

我知道当使用父类引用来引用子类对象时,OOP中多态性的常见用法是这样的:

Animal animal = new Animal();
Animal dog = new Dog();

我知道多态性适用于类方法,但它是否也适用于类属性？我尝试用这个小例子来测试它:

public class Main{

    public static void main(String args[]){
        Animal animal = new Animal();
        Animal dog1 = new Dog();
        Dog dog2 = new Dog();

        System.out.println("Animal object name: " + animal.name);
        System.out.println("Dog1 object name: "+dog1.name);
        System.out.println("Dog2 object name: " + dog2.name);

        animal.print();
        dog1.print();
        dog2.print();
    }

}
class Animal{
    String name = "Animal";
    public void print(){
        System.out.println("I am an: "+name);
    }
}
class Dog extends Animal{
    String name = "Dog";
    public …