子类构造器常见应用

package com.Demo1;

public class Test {
    public static void main(String[] args) {
        //搞清楚子类构造器为什么要调用父类构造器，有啥应用场景
        Teacher t=new Teacher("李四",36,"Java");
        System.out.println(t.getName());
        System.out.println(t.getAge());
        System.out.println(t.getSkill());
    }
}



class Teacher extends People{
    private String skill;

    public Teacher(String name,int age,String skill){
        //直接去调用父类的有参构造器
        super(name , age);
        //为skill赋值
        this.skill=skill;
    }


    public String getSkill() {
        return skill;
    }

    public void setSkill(String skill) {
        this.skill = skill;
    }
}



class People{
    private String name;
    private int age;

    public People() {
    }

    public People(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}