new的对象存储的是栈中的地址,并不是对象本身。
因此在当参数进行传递的时候,单纯的对对象实例进行操作,并不会影响方法之外。

public class Person {public Person() {}public Person(String name) {this.name = name;}private String name;public String getName() {return name;}public void setName(String name) {this.name = name;}public static void xiugai(Person p){p.setName("wangwu");}public static void jiaohuan(Person p1 ,Person p2){Person temp = p1;p1 = p2;p2 = temp;xiugai(p1);}public static void main(String[] args) {Person p1 = new Person("zhagnsan");Person p2 = new Person("lisi");Person.jiaohuan(p1, p2);System.out.println(p1.getName() + "    " + p2.getName());}
}
<img src="data:image/png;base64,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" alt="" />

java只有值传递(P123)相关推荐

  1. java 引用传递_详解java的值传递、地址传递、引用传递

    详解java的值传递.地址传递.引用传递 一直来觉得对值传递和地址传递了解的很清楚,刚才在开源中国上看到一篇帖子介绍了java中的值传递和地址传递,看完后感受颇深.下边总结下以便更容易理解. 按照以前 ...

  2. 我要彻底给你讲清楚,Java就是值传递,不接受争辩的那种!

    作者 l Hollis 来源 l Java之道(ID:javaways) 关于Java中方法间的参数传递到底是怎样的.为什么很多人说Java只有值传递等问题,一直困惑着很多人,甚至我在面试的时候问过很 ...

  3. java传参怎么理解_如何理解Java的值传递

    结论 为了加深印象,先把结论放在文章开头. ++Java中只有值传递++. 形参与实参 在理解Java的值传递 实参Argument 实际参数,主调用函数传递给调用函数的参数 形参Parameter ...

  4. java引用传递106_(转载)java的值传递与引用传递

    1 说明:本文的适用对象为java初学者.如果有读者发现文章中有叙述不妥之处,请指正.2 3 今天在论坛上有人提了一个关于java中调用函数时有没有引用传递的问题,可谓是吵的不可开交.有人说java只 ...

  5. Java是值传递还是引用传递?

    Java是值传递: (1)基本类型作为参数传递时,是传递值的拷贝,无论你怎么改变这个拷贝,原值是不会改变的: (2)对象的引用作为参数传递时,是把对象在内存中的地址拷贝了一份传给了参数,无论怎么改变这 ...

  6. java对象引用出错_“Java有值传递和引用传递”为什么错了?

    前言 初学Java的时候,老师在课堂上说"Java有值传递和引用传递",但网上"Java只有值传递"的呼声很高. 本人在查找资料的过程中,在这两个说法之间反复横 ...

  7. java能传地址吗,详解java的值传递、地址传递、引用传递

    一直来觉得对值传递和地址传递了解的很清楚,刚才在开源中国上看到一篇帖子介绍了java中的值传递和地址传递,看完后感受颇深.下边总结下以便更容易理解. 按照以前的理解,java中基本数据类型是值传递,对 ...

  8. java只有值传递_为什么说java只有值传递?

    如果你学的第一门程序语言是java可能对这个传递方式没有那么敏感,如果学了c或c++,然后再学java,那么可能对这个问题会感到困惑. 1.值传递与引用传递的概念 在将传递方式之前先理解一下形参与实参 ...

  9. 这一次,彻底解决Java的值传递和引用传递

    本文旨在用最通俗的语言讲述最枯燥的基本知识 学过Java基础的人都知道:值传递和引用传递是初次接触Java时的一个难点,有时候记得了语法却记不得怎么实际运用,有时候会的了运用却解释不出原理,而且坊间讨 ...

  10. Java is Pass-by-Value, Dammit! 我靠!Java就是值传递!

    Java is Pass-by-Value, Dammit! 我靠!Java就是值传递! 原文地址:http://javadude.com/articles/passbyvalue.htm 关键点 形 ...

最新文章

  1. java检测tcp存活_keep-alive 和 TCP存活检测
  2. Python中的join()函数的用法
  3. Oracle Rman 命令详解(List report backup configure)
  4. 云科技网络验证源码_面向虚拟化架构和容器云的开源安全工具
  5. 101/103/104规约应用典型问题例举
  6. 计算机ps基础知识教案范文,平面设计基础教案范文
  7. Qt android 开发环境搭建
  8. MATLAB周期时域曲线,matlab时域采样定理
  9. Linux常用命令大全 阶段性总结(一)
  10. 自考本科英语(二)学习笔记和考试经验
  11. Android App Bundle 和Unity AAB BundleTools
  12. 怎么将计算机的触摸鼠标锁定,戴尔笔记本触摸鼠标怎么锁定
  13. 3.4.1 在物理层扩展以太网
  14. ios系统删除的短信如何恢复?
  15. 截屏工具、录屏工具不能用?是因为这个!!
  16. 加权黑猩猩优化算法(WChOA)附Matlab代码
  17. java类图标变成空心的解决办法
  18. 关于短信验证码报错和解决问题
  19. Schlumberger.PIPESIM.2017.1.932.Win64 1DVD
  20. echarts 去掉折线图中的圆点

热门文章

  1. ftp服务器的安装原理,ftp原理及配置笔记
  2. 用Python代码画一只杰瑞
  3. [半监督学习] Dual Student: Breaking the Limits of the Teacher in Semi-supervised Learning
  4. tp5实现paypal支付
  5. 知识竞赛小程序、知识库小程序如何分享到微信好友、朋友圈
  6. 如何高效管理 React Native 项目中的图片资源
  7. 自恢复保险丝(PPTC)是什么?原理解释
  8. uTorrent端口设置
  9. 流水线设计实例——8位全加器设计
  10. muduo::Acceptor、TcpServer分析