JavaOOP实例化动物类(小猫、小狗)并调用其对应的方法

package practice; public class Animal {public void Howl() {System.out.println("动物的叫声");}public static void main(String[] args) {// 实例化小猫对象Animal cat = new Cat();cat.Howl();// 实例化小狗对象Animal dog = new Dog();dog.Howl();} } // 定义小猫类继承动物类 class Cat extends Animal {public void Howl() {System.out.println("小猫：喵喵喵~");} } // 定义小狗类继承动物类 class Dog extends Animal {public void Howl() {System.out.println("小狗：汪汪汪~");} }