reverocean

When you are developing a java project,you maybe want to log the history of the reason of changing your java code.You can write some comment on the head of a java file,but if there are too many files ...

[code="java"]import java.io.File;import java.net.MalformedURLException;import java.net.URL;import java.net.URLClassLoader;import java.sql.Connection;import java.sql.Driver;import java.sql....

Because I need to use english in my work,I decide to write my blog in english.I can use english to log what i study every day orwhat i do,and so on.In this project,I decide to use tdd to develop pr...

其实很简单，但是没有用过，也就没有去研究。今天被别人问起，就看了一下自动生成的Example类的代码里怎么实现in的。只需要把where条件的in后面加上如下的代码就可以了[code="java"] #key[]#[/code]这段代码一看也就明白了，就是遍历key属性里的值，分别以"("开头，")"结尾，并以逗号分隔。...

转至【http://pengjiaheng.spaces.live.com/blog/cns!2DAA368B386E6AEA!770.entry】一、相关概念基本回收算法引用计数（Reference Counting）比较古老的回收算法。原理是此对象有一个引用，即增加一个计数，删除一个引用则减少一个计数。垃圾回收时，只用收集计数为0的对象。此算法最致命的是无法处理循环...