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poj 3250 状态压缩dp入门
Corn FieldsTime Limit:2000MSMemory Limit:65536KTotal Submissions:7798Accepted:4159DescriptionFarmer John has purchased a lush new rectangular pasture ...
分类:其他好文   时间:2014-08-26 22:39:36    阅读次数:236
[Java Basics2] Iterable, Socket, Reflection, Proxy
Parent interface of Collection: Iterable InterfaceA class that implements theIterablecan be used with the new for-loop.TheIterableinterface has only o...
分类:编程语言   时间:2014-08-26 19:33:06    阅读次数:272
Connection关闭,ResultSet不关闭
如果你不使用连接池,那么就没有什么问题,一旦Connection关闭,数据库物理连接就被释放,所有相关Java资源也可以被GC回收了。? 但是如果你使用连接池,那么请注意,Connection关闭并不是物理关闭,只是归还连接...
分类:其他好文   时间:2014-08-26 17:51:46    阅读次数:156
Path Sum系列
Path SumGiven a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the give...
分类:其他好文   时间:2014-08-26 17:05:36    阅读次数:156
ZOJ3798:Abs Problem
Alice and Bob is playing a game, and this time the game is all about the absolute value! Alice has N different positive integers, and each number is not greater than N. Bob has a lot of blank paper, ...
分类:其他好文   时间:2014-08-26 15:37:46    阅读次数:228
java,大数据批量插入、更新
public void exec(Connection conn){ try { conn.setAutoCommit(false); Long beginTime = System.currentTimeMillis(); //构造预处理statement Prepare...
分类:编程语言   时间:2014-08-26 15:06:36    阅读次数:425
cheap ghd online has used the Gillette Fusion
DesignFor whoever cheap ghd online has used the Gillette Fusion or even the Mach 3, You'll know about the Schick's"Paintbrush" Sort head. Most notably...
分类:其他好文   时间:2014-08-26 13:29:06    阅读次数:215
JavaEE学习之路-Servlet Lifecycle
The lifecycle of a servlet is controlled by the container in which the servlet has been deployed. When a request is mapped to a servlet, the container performs the following steps. If an instance...
分类:编程语言   时间:2014-08-26 09:55:25    阅读次数:292
解决Kloxo出现Could not open database connection问题
当我们在使用或者运行kloxo面板的时候,可能会出现类似"Could not open database connection"错误提示,对于新手朋友来说肯定本身安装面板管理VPS就想让事情简单一点。如果再出现这样的问题,势必会使得我们更加不知道如何处理。如果是主机产品还可以找主机商或者主机面板,但...
分类:数据库   时间:2014-08-26 09:45:45    阅读次数:230
ASP.NET中常用的优化性能的方法
1. 数据库访问性能优化 数据库的连接和关闭 访问数据库资源需要创建连接、打开连接和关闭连接几个操作。这些过程需要多次与数据库交换信息以通过身份验证,比较耗费服务器资源。ASP.NET中提供了连接池(Connection Pool)改善打开和关闭数据库对性能的影响。系统将用户的数据库连接放在连接.....
分类:Web程序   时间:2014-08-26 00:09:35    阅读次数:486
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