Java基础知识14:子类构造方法中有super()构造方法

Java基础知识14:子类构造方法中有super()构造方法

package com.hiyo.HighClass;



class House {
    private String name ;
    private float price ;
    public House(){//父类的构造方法
        System.out.println("父类House中的构造方法！");
    }
    public void setName(String name) {
        this.name = name ;
    }
    public void setPrice(float price) {
        this.price = price ;
    }
    public String getName(){
        return this.name ;
    }
    public float getPrice() {
        return this.price ;
    }
}
class TownHouse extends House {
    public TownHouse(){
        //子类的构造方法相当于又一个super() ;
        super() ;//可以不写，结果一样
        System.out.println("子类的构造方法");
    }
    private String town ;
    public String getTown(){
        return this.town ;
    }
    public void setTown(String town) {
        this.town = town ;
    }
}
public class ExtendDemo2 {
    public static void main(String[] args) {
        TownHouse th = new TownHouse() ;
        th.setName("AA");
        th.setPrice(30000.00f);
        th.setTown("BB");
        System.out.println(th.getTown() + th.getName() + th.getPrice());
    }
}