�??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>&#39640;&#28165;&#31119;&#21033;&#22312;&#32447;&#35266;&#30475;&#44;&#22269;&#20135;&#31934;&#21697;&#19968;&#21306;&#20108;&#21306;&#32654;&#22899;&#35270;&#39057;&#20813;&#36153;&#30475;&#44;&#26085;&#38889;&#27431;&#20081;&#33394;&#19968;&#21306;&#20108;&#21306;&#19977;&#21306;&#22312;&#32447;</title><link>http://www.aygfsteel.com/cheneyfree/category/22739.html</link><description>如果你追求阳光，你就�w�不开�w�后的阴影�?/description><language>zh-cn</language><lastBuildDate>Wed, 28 May 2008 01:51:39 GMT</lastBuildDate><pubDate>Wed, 28 May 2008 01:51:39 GMT</pubDate><ttl>60</ttl><item><title>对象初始化流�E�梳�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2008/05/24/202643.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Sat, 24 May 2008 13:26:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2008/05/24/202643.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/202643.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2008/05/24/202643.html#Feedback</comments><slash:comments>3</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/202643.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/202643.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 通过一�D�代码，来看JAVA对象初始化的��序�Q�看看对象初始化对于static块，非static块，static属性，非static属性和构造器�Q�它们之间的执行���程�?<br>&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2008/05/24/202643.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/202643.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2008-05-24 21:26 <a href="http://www.aygfsteel.com/cheneyfree/archive/2008/05/24/202643.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>static、this、super、final用法</title><link>http://www.aygfsteel.com/cheneyfree/archive/2008/05/23/202487.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Fri, 23 May 2008 12:22:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2008/05/23/202487.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/202487.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2008/05/23/202487.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/202487.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/202487.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 最�q�在复习J2SE基础部分�Q�新��目需要换�q�_��框架�Q�和以前的JSP+C+存储�q�程架构不同�Q�这�ơ要采用WEB2.0方式增强��目的交互性，具体好处只有到真正开发当中去体会了�?<br>���着�q�个旉����D�，自己再回��֛���֟�����?nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2008/05/23/202487.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/202487.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2008-05-23 20:22 <a href="http://www.aygfsteel.com/cheneyfree/archive/2008/05/23/202487.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>String对象的理解进行时</title><link>http://www.aygfsteel.com/cheneyfree/archive/2008/05/12/200088.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Mon, 12 May 2008 13:43:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2008/05/12/200088.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/200088.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2008/05/12/200088.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/200088.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/200088.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 在CSDN上，String对象已经被谈及了不知有多���个N遍了。由于自��p��期在�?<深入Java虚拟�?>�q�本书，看的�q�程当中�Q�有很多新的收获。于是想���以前学习时候对一些概念重新整理，想重新梳理一下在Java�q�块的知识体�p�R��下文中是自己对String对象的的一些见解和看法�Q�文中内容也在同步更��C��。欢�q�大家提��Z��们的见解�?nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2008/05/12/200088.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/200088.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2008-05-12 21:43 <a href="http://www.aygfsteel.com/cheneyfree/archive/2008/05/12/200088.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>对象初始化问题引发的思�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/06/01/121382.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Fri, 01 Jun 2007 08:40:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/06/01/121382.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/121382.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/06/01/121382.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/121382.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/121382.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 引发的思�?..
<br>              
<br>一个让98%Java�E�序员犯隄���问题&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/06/01/121382.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/121382.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-06-01 16:40 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/06/01/121382.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>在Java应用�E�序中访问USB讑֤�</title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119621.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 03:04:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119621.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119621.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119621.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119621.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119621.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: Java �q�_��一直都以其�q�_��无关性自豪。虽然这�U�无��x��有许多好处�Q�但是它也��得编写与����g交互�?Java 应用�E�序的过�E�变得相当复杂。在本文中，研究�U�学家蒋清野讨论了两个项目，它们通过提供�?Java 应用�E�序可以使用 USB 讑֤��?API 而�ɘq�个�q�程变得更容易。虽然这两个��目仍然处于萌芽状态，但是它们都显�C�Z��良好的前景，�q�已�l�成��Z��些实用应用程序的基础�?nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119621.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119621.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 11:04 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119621.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Java中的�c�d�����机�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119620.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 03:03:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119620.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119620.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119620.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119620.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119620.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: Reflection �?Java �E�序开发语�a�的特征之一�Q�它允许�q�行中的 Java �E�序对自�w�进行检查，或者说自审�Q��ƈ能直接操作程序的内部属性。Java 的这一能力在实际应用中也许用得不是很多�Q�但是在其它的程序设计语�a�中根本就不存在这一�Ҏ��。例如，Pascal、C 或�?C++ 中就没有办法在程序中获得函数定义相关的信息�?nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119620.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119620.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 11:03 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119620.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Java动态的�E�序设计</title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119618.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 03:02:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119618.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119618.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119618.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119618.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119618.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: �W�一部分　�c�d���cȝ��装蝲
<br>
<br>我们来看一下类以及它们被JVM装蝲的时候做了些什么？
<br>&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119618.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119618.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 11:02 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119618.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Java代码�~�写30条徏�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119619.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 03:02:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119619.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119619.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119619.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119619.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119619.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: (1) �c�d��首字母应该大写。字�D�c��方法以及对象（句柄�Q�的首字母应���写。对于所有标识符�Q�其中包含的所有单词都应紧靠在一��P��而且大写中间单词的首字母�?nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119619.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119619.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 11:02 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119619.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>��Z��么Java中��承是有害�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119617.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 03:01:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119617.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119617.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119617.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119617.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119617.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 大多数好的设计者象�w�避瘟疫一��h��避免使用实现�l�承(extends 关系)。实际上80%的代码应该完全用interfaces写，而不是通过extends。“JAVA设计模式”一书详�l�阐�q�C��怎样用接口��承代替实现���ѝ��这���文章描�q�设计者�ؓ什么会�q�么作�?&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119617.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119617.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 11:01 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119617.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>对象引用对GC的媄�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119616.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 03:00:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119616.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119616.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119616.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119616.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119616.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要:     如果您认�?Java 游戏开发�h员是 Java �~�程世界的一�U�方�E�式赛�R手，那么您就会明白�ؓ什么他们会如此地重视程序的性能�?游戏开发�h员几乎每天都要面对的性能问题�Q�往往���过了一般程序员考虑问题的范围。哪里可以找到这些特�D�的开发�h员呢�Q�Java 游戏�C�֌����是一个好��d���?虽然在这个站点可能没有很多关于服务器端的应用�Q�但是我们依然可以从中受益，看看�q�些“惜比特如金”的游戏开发�h员每天所面对的，我们往往能从中得到宝�늚��l�验。让我们开始游戏吧�Q?
<br>&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119616.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119616.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 11:00 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119616.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>优化JAVA�E�序�Q�提高JAVA性能</title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119613.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:59:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119613.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119613.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119613.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119613.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119613.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 通过使用一些辅助性工��h��扑ֈ��E�序中的瓉����Q�然后就可以对瓶颈部分的代码�q�行优化。一般有两种�Ҏ���Q�即优化代码或更改设计方法。我们一般会选择后者，因�ؓ不去调用以下代码要比调用一些优化的代码更能提高�E�序的性能。而一个设计良好的�E�序能够�_����代码�Q�从而提高性能�?&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119613.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119613.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:59 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119613.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>JAVA中的传��g��传引�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119615.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:59:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119615.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119615.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119615.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119615.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119615.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 首先�Q�推荐对Java有一定理解的同仁一本书《Practical Java》。在《Practical Java》中也有一个章节介�l�Java中关于传值和传引用的问题�Q�堪�U�经典�?<br>
<br>《Practical Java�?nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119615.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119615.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:59 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119615.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>JAVA性能优化集锦</title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119612.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:58:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119612.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119612.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119612.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119612.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119612.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: Java性能优化技巧集�?
<br>
<br>　　可供�E�序利用的资源是有限的，优化的目的就是让�E�序用尽可能���的资源完成预定的�Q务�?
<br>
<br>　　可供�E�序利用的资源（内存、CPU旉���、网�l�带宽等�Q�是有限的，优化的目的就是让�E�序用尽可能���的资源完成预定的�Q务。优化通常包含两方面的内容�Q�减���代码的体积�Q�提高代码的�q�行效率。本文讨论的主要是如何提高代码的效率�?<br>&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119612.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119612.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:58 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119612.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>JAVA�c�d��载内�q?一)</title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119611.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:57:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119611.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119611.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119611.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119611.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119611.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要:     �c�d��载是java语言提供的最强大的机制之一。尽���类加蝲�q�不是讨论的热点话题�Q�但所有的�~�程人员都应该了解其工作机制�Q�明白如何做才能让其满��我们的需要。这能有效节省我们的�~�码旉����Q�从不断调试ClassNotFoundException, ClassCastException的工作中解脱出来�?nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119611.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119611.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:57 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119611.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>JAVA�c�d��载内�q?�?</title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119610.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:56:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119610.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119610.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119610.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119610.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119610.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 定制�c�d��载器
<br>　　
<br>
<br>    要较好地控制�cȝ��加蝲�Q�就要实现定制的�c�d��载器。所有自定义的类加蝲器都应��承自java.lang.ClassLoader。而且在构造方法中�Q�我们也应该讄���父类加蝲器。然后重写findClass()�Ҏ��。differentversionspush文�g夹包含了一个叫做FileSystemClassLoader的自订制的类加蝲器。其�l�构如图9所�C��?<br>&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119610.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119610.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:56 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119610.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>关于Java栈与堆的思�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119608.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:55:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119608.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119608.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119608.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119608.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119608.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要:       1. �?stack)与堆(heap)都是Java用来在Ram中存放数据的地方。与C++不同�Q�Java自动���理栈和堆，�E�序员不能直接地讄���栈或堆�?
<br>
<br>　　2. 栈的优势是，存取速度比堆要快�Q�仅�ơ于直接位于CPU中的寄存器。但�~�点是，存在栈中的数据大���与生存期必���L�����定的，�~�Z��灉|��性。另外，栈数据可以共享，详见�W?炏V��堆的优势是可以动态地分配内存大小�Q�生存期也不必事先告诉编译器�Q�Java的垃圾收集器会自动收走这些不再��用的数据。但�~�点是，�׃��要在�q�行时动态分配内存，存取速度较慢�?nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119608.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119608.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:55 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119608.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>每个初学者都应该搞懂的问�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119607.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:54:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119607.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119607.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119607.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119607.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119607.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 对于�q�个�p�d��里的问题�Q�每个学Java的�h都应该搞懂。当�Ӟ��如果只是学Java玩玩���无所谓了。如果你认�ؓ自己已经���越初学者了�Q�却不很懂这些问题，请将你自己重归初学者行列。内容均来自于CSDN的经典老脓�?<br>
<br>
<br>问题一�Q�我声明了什么！
<br>&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119607.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119607.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:54 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119607.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>关于Java占用内存的研�I?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119606.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:53:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119606.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119606.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119606.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119606.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119606.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 下面的论�q�针�?2位系�l�，�?4位系�l�不适用�Q�后叙�?<br>
<br>�l�常你写了一个程序，一���试�Q�功能没问题�Q�一看内存占用也不多�Q�就不去考虑其它的东西了。但可能�E�序使用了一个什么数据结构，会当数据规模变大�Ӟ��内存占用�Ȁ增�?<br>&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119606.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119606.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:53 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119606.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>java内存的思考与�ȝ��</title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119604.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:51:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119604.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119604.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119604.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119604.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119604.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 1. java中堆与栈 
<br>
<br>在Java�E�序�q�行�Ӟ���?个地方可以用于保存数据： 
<br>(1) 寄存器。最快的保存区域�Q�位于处理器内部,数量十分有限�Q�它是根据需要由�~�译器分配。我们对此没有直接的控制�? 
<br>&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119604.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119604.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:51 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119604.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Java虚拟机类装蝲�Q�原理、实��C��应用</title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119599.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:48:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119599.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119599.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119599.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119599.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119599.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 一、引�a�
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<br>Java虚拟�?JVM)的类装蝲���是指将包含在类文�g中的字节码装载到JVM�? �q���其成为JVM一部分的过�E�。JVM的类动态装载技术能够在�q�行时刻动态地加蝲或者替换系�l�的某些功能模块, 而不影响�pȝ��其他功能模块的正常运行。本文将分析JVM中的�c�装载系�l�，探讨JVM中类装蝲的原理、实��C��及应用�?<br>&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119599.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119599.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:48 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119599.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>Java虚拟�����行机�?/title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119597.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:44:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119597.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119597.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119597.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119597.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119597.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要:       JVM(Java虚拟�?一�U�用于计���设备的规范�Q�可用不同的方式�Q���Y件或����g�Q�加以实现。编译虚拟机的指令集与编译微处理器的指��o集非常类伹{��Java虚拟机包括一套字节码指��o集、一�l�寄存器、一个栈、一个垃圑֛�收堆和一个存储方法域�? &nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119597.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119597.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:44 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/119597.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>JAVA入门需要掌握的知识</title><link>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/JBS.html</link><dc:creator>cheng</dc:creator><author>cheng</author><pubDate>Thu, 24 May 2007 02:41:00 GMT</pubDate><guid>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/JBS.html</guid><wfw:comment>http://www.aygfsteel.com/cheneyfree/comments/119595.html</wfw:comment><comments>http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/JBS.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/cheneyfree/comments/commentRss/119595.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/cheneyfree/services/trackbacks/119595.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: Java的白皮书为我们提��Z��Java语言�?1个关键特�? 
<br>
<br>　　(1)Easy:Java的语法比C++的相对简单，另一个方面就是Java能��软�g在很���的机器上运行，基础解释其和�c�d��的支持的大小�U��ؓ40kb�Q�增加基本的标准库和�U�程支持的内存需要增�?25kb&nbsp;&nbsp;<a href='http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/JBS.html'>阅读全文</a><img src ="http://www.aygfsteel.com/cheneyfree/aggbug/119595.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/cheneyfree/" target="_blank">cheng</a> 2007-05-24 10:41 <a href="http://www.aygfsteel.com/cheneyfree/archive/2007/05/24/JBS.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>                                                               <footer>
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