﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>BlogJava-BBT_soft-最新评论</title><link>http://www.blogjava.net/bbtsoft/CommentsRSS.aspx</link><description /><language>zh-cn</language><pubDate>Sat, 26 Sep 2009 07:54:23 GMT</pubDate><lastBuildDate>Sat, 26 Sep 2009 07:54:23 GMT</lastBuildDate><generator>cnblogs</generator><item><title>re: equals()方法个人理解</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/11/290335.html#290647</link><dc:creator>隔叶黄莺</dc:creator><author>隔叶黄莺</author><pubDate>Tue, 11 Aug 2009 02:20:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/11/290335.html#290647</guid><description><![CDATA[楼主的理解恐怕把问题稍稍搞复杂了些，所谓比较内容只是 equals 方法的一个约定，如果高兴的话你可以认为两个对象只要某一个属性（如id）是相等的就是 equals 的。<br><br>所以说到底，你就看 equals() 方法的实现，看运行时具体调用了哪个 equals() 方法就行，就是面向对象的多态吗！<br><br>因为 Object 实现的 equals() 方法就是比较引用，所以如果你的类没有实现 equals() 方法，它可能调用的就是 Object  的 equals() 方法来比较引用，除非继承树中有 equals() 的其他实现。<br><br>像 String, Integer 等都自己实现了 equals() 方法，因此它们就比较了内容，说这么多看源码吧。<img src ="http://www.blogjava.net/bbtsoft/aggbug/290647.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">隔叶黄莺</a> 2009-08-11 10:20 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/11/290335.html#290647#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: equals()方法个人理解[未登录]</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/10/290335.html#290579</link><dc:creator>stanleyxu2005</dc:creator><author>stanleyxu2005</author><pubDate>Mon, 10 Aug 2009 11:42:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/10/290335.html#290579</guid><description><![CDATA[It is clear that you should override the equals method for your own data type by default. BTW: Do not use &quot;==&quot; in general. If the object on the right side is null, an NullPointerException will be thrown.<img src ="http://www.blogjava.net/bbtsoft/aggbug/290579.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">stanleyxu2005</a> 2009-08-10 19:42 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/10/290335.html#290579#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: equals()方法个人理解</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/10/290335.html#290546</link><dc:creator>HalZhang</dc:creator><author>HalZhang</author><pubDate>Mon, 10 Aug 2009 07:13:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/10/290335.html#290546</guid><description><![CDATA[不同的情况下还需要不同的比较方法，例如Hibernate的实体<img src ="http://www.blogjava.net/bbtsoft/aggbug/290546.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">HalZhang</a> 2009-08-10 15:13 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/10/290335.html#290546#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: 常用邮箱的SMTP与POP3服务器(个人总结)[未登录]</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/10/290336.html#290522</link><dc:creator>daijn</dc:creator><author>daijn</author><pubDate>Mon, 10 Aug 2009 04:43:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/10/290336.html#290522</guid><description><![CDATA[收下了，谢谢!<img src ="http://www.blogjava.net/bbtsoft/aggbug/290522.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">daijn</a> 2009-08-10 12:43 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/10/290336.html#290522#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: equals()方法个人理解</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/09/290335.html#290463</link><dc:creator>charleeHu</dc:creator><author>charleeHu</author><pubDate>Sun, 09 Aug 2009 14:18:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/09/290335.html#290463</guid><description><![CDATA[看看JDK源码不就清楚了么 ==!<img src ="http://www.blogjava.net/bbtsoft/aggbug/290463.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">charleeHu</a> 2009-08-09 22:18 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/09/290335.html#290463#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: equals()方法个人理解</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/09/290335.html#290445</link><dc:creator>惜棋</dc:creator><author>惜棋</author><pubDate>Sun, 09 Aug 2009 09:28:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/09/290335.html#290445</guid><description><![CDATA[远没有那么简单<br><br>Integer n1 = new Integer(47);<br>Integer n2 = new Integer(47);<br>System.out.println(n1 ==n2);<br><br><br><br>Integer m1 = new Integer(247);<br>Integer m2 = new Integer(247);<br>System.out.println(m1==m2);<br><br><img src ="http://www.blogjava.net/bbtsoft/aggbug/290445.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">惜棋</a> 2009-08-09 17:28 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/09/290335.html#290445#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: equals()方法个人理解</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/09/290335.html#290413</link><dc:creator>戴尔笔记本</dc:creator><author>戴尔笔记本</author><pubDate>Sun, 09 Aug 2009 02:19:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/09/290335.html#290413</guid><description><![CDATA[不错啊<img src ="http://www.blogjava.net/bbtsoft/aggbug/290413.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">戴尔笔记本</a> 2009-08-09 10:19 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/09/290335.html#290413#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: 常用邮箱的SMTP与POP3服务器(个人总结)</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/09/290336.html#290412</link><dc:creator>凡客诚品</dc:creator><author>凡客诚品</author><pubDate>Sun, 09 Aug 2009 02:19:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/09/290336.html#290412</guid><description><![CDATA[1213<img src ="http://www.blogjava.net/bbtsoft/aggbug/290412.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">凡客诚品</a> 2009-08-09 10:19 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/09/290336.html#290412#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: 常用邮箱的SMTP与POP3服务器(个人总结)</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/08/290336.html#290370</link><dc:creator>Visit Shenzhen</dc:creator><author>Visit Shenzhen</author><pubDate>Sat, 08 Aug 2009 12:50:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/08/290336.html#290370</guid><description><![CDATA[不错，可以仿照那些网址大全做一个邮箱大全登录了<br><br><a href="http://www.szcpost.com" target="_new" rel="nofollow">http://www.szcpost.com</a><img src ="http://www.blogjava.net/bbtsoft/aggbug/290370.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">Visit Shenzhen</a> 2009-08-08 20:50 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/08/290336.html#290370#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: 常用邮箱的SMTP与POP3服务器(个人总结)</title><link>http://www.blogjava.net/bbtsoft/archive/2009/08/08/290336.html#290363</link><dc:creator>龙屠日</dc:creator><author>龙屠日</author><pubDate>Sat, 08 Aug 2009 12:25:00 GMT</pubDate><guid>http://www.blogjava.net/bbtsoft/archive/2009/08/08/290336.html#290363</guid><description><![CDATA[这个挺好！<img src ="http://www.blogjava.net/bbtsoft/aggbug/290363.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/bbtsoft/" target="_blank">龙屠日</a> 2009-08-08 20:25 <a href="http://www.blogjava.net/bbtsoft/archive/2009/08/08/290336.html#290363#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>