CoreJava/exp3/Dog.java

package exp3;

public class Dog extends Animal {
    //成员属性
    String breed;

    //无参构造
    public Dog(){
        super();
        this.breed = "中华田园犬";
    }

    //全参构造
    public Dog(String name, int weight, String color, String breed){
        super(name, weight, color);
        this.breed = breed;
    }

    //行为-吠叫
    void bark(){
        System.out.println(this.name+"在吠叫");
    }

}