Java基础系列 - 子类继承父类，调用父类的构造函数

package com.test7;

public class test7 {

    public static void main(String[] args) {

        Son son = new Son(1000, "张三");

        /**

         * 打印显示

             Father的构造函数1000 张三

             Son的构造函数1000 张三

         */

    }

}

class Father {

    private int userId;

    private String userName;

    public Father(int userId, String userName) {

        System.out.println("Father的构造函数" + userId + " " + userName);

        this.userId = userId;

        this.userName = userName;

    }

}

class Son extends Father {

    /**

     * 子类中调用父类的构造函数

     *

     * @param userId

     * @param userName

     */

    public Son(int userId, String userName) {

        super(userId, userName);

        System.out.println("Son的构造函数" + userId + " " + userName);

    }

}