一、内存分析
代码:引用可以是局部变量也可以是成员变量
public class Test1{ public static void main(String[] args){ User u = new User(); u.no = 40; u.name = "ajflasd "; u.address = new address(); //name、no都是引用,它们存储的是堆内存中对应实例变量的地址 } }
二、对象之间建立关系
public class D34_husband_and_wife{ public static void main(String[] args){ Husband huangxiaoming = new Husband(); Wife baby = new Wife(); huangxiaoming.name = "huangxiaoming"; baby.name = "baby"; //上面的例子其实将两个人割裂开来,没有建立关系 //下面对她们进行建立关系 huangxiaoming.w = baby; baby.h = huangxiaoming; } } class Wife { String name; Husband h; } class Husband { String name; Wife w; }
二、源码:
D34_husband_and_wife.java
地址:
https://github.com/ruigege66/Java/blob/master/D34_husband_and_wife.java
2.CSDN:https://blog.csdn.net/weixin_44630050(心悦君兮君不知-睿)
3.博客园:https://www.cnblogs.com/ruigege0000/
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