package J20250716.demo01_extends; /** * @author WanJl * @version 1.0 * @title Teddy * @description * @create 2025/7/16 */ public class Teddy extends Dog{ public Teddy(int a) { //默认都先调用了父类的构造方法 super(a); System.out.println("泰迪类无参构造方法"); } public void move(){ System.out.println("泰迪移动......"); } }