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浅谈Hibernate关系映射(4)
继上篇博客   多对多关联映射(单向)   多对多对象关系映射,需要加入一张新表完成基本映射。 Hibernate会自动生成中间表 Hibernate使用many-to-many标签来表示多对多的关联,多对多的关联映射,在实体类中,跟一对多一样,也是用集合来表示的。   如下图所示 通过User可以查看Role的信息   User的映射文件...
分类:系统相关   时间:2014-08-05 09:38:49    阅读次数:321
Ural 1613 For Fans of Statistics(vector应用)
题目: For Fans of Statistics Time Limit:1000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64 Description Have you ever thought about how many people are transported...
分类:其他好文   时间:2014-08-04 21:44:08    阅读次数:381
STL--G - For Fans of Statistics(两个判断条件-二分)
G - For Fans of Statistics Time Limit:1000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Description Have you ever thought about how many people are tran...
分类:其他好文   时间:2014-08-04 21:29:28    阅读次数:318
hdu1978(记忆化搜索)
How many waysTime Limit: 3000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2762Accepted Submission(s): 1630Probl...
分类:其他好文   时间:2014-08-04 21:12:27    阅读次数:234
Best MVC Practices 最佳的MVC实践
Although Model-View-Controller (MVC) is known by nearly every Web developer, how to properly use MVC in real application development still eludes many people. The central idea behind MVC is?code ...
分类:Web程序   时间:2014-08-04 18:28:57    阅读次数:349
UVa 988 - Many Paths, One Destination
题目:人生有很多选择,现在给你一些选择(0~n-1),和每个选择分支后面的其他选择序号,求选择总数。 分析:dp,图论。如果某状态的后续选择个数是0个则,代表死亡,统计所有到达死亡的路径条数即可。             用一个状态数组记录到达每个选择的路径数,它等于能到达它的前驱节点的路径加和。             稀疏图,使用邻接表储存。初始是节点0的路径条数为1,代表出生。 说明...
分类:其他好文   时间:2014-08-04 17:53:57    阅读次数:199
java图形图像SVG转PPM程序代写 qq:928900200
Background Many image file formats encode image data as a 2-D matrix or raster of pixel colors. The amount of available color information is fixed by ...
分类:编程语言   时间:2014-08-03 20:33:25    阅读次数:386
poj 3259 Wormholes
Wormholes Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 30766   Accepted: 11157 Description While exploring his many farms, Farmer John has discovered a nu...
分类:其他好文   时间:2014-08-02 18:30:23    阅读次数:317
LeetCode——Unique Binary Search Trees
Given n, how many structurally unique BST's (binary search trees) that store values 1...n? For example, Given n = 3, there are a total of 5 unique BST's. 1 3 3 2 1 \ ...
分类:其他好文   时间:2014-08-02 15:34:34    阅读次数:221
AlertDialog Demo
AlertDialod like java awt dialog , when a event actived the activity will display a dialog , it can contain many views not only text or buttons ,here ...
分类:其他好文   时间:2014-08-02 15:07:53    阅读次数:208
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