package com.sf.day06; public class Test02 { public static void main(String[] args) { //丈夫对象 Husband h = new Husband(); h.name = "张三"; h.age = 22; h.desc = "高达帅气"; //类属性 默认 null //创建 妻子对象 Wife wife = new Wife(); wife.name = "小红"; wife.age = 25; wife.desc = "温柔大方"; wife.husband = h; //在丈夫属性中给妻子 赋值 h.wife = wife; System.out.println("丈夫信息:"+h.name+" "+h.age+" "+h.desc); System.out.println("妻子信息:"+h.wife.name+""+h.wife.age+" "+h.wife.desc); //通过妻子访问丈夫 System.out.println(wife.husband.name); } }