23-kinds-of-Java-design-patterns

基于JAVA的B+树数据结构，B+树是改进的平衡二叉树，查询效率更高。(JAVA-based B+-tree data structure, B+ tree is an improved balanced binary tree, the query more efficient.)

利用netbeans开发工具设计简单的通讯录界面程序 jdk使用1 4 2以上(Using netbeans development tools to design a simple contact book interface program jdk uses more than 1 42)

说明：  e拍网上在线拍卖系统（北大青鸟），模拟电子商务网上交易平台(e film online online auction system (Beida Jade Bird), simulated e-commerce online trading platform)

Pringmvc project how to load in the jars in the spring configuration file

ID3 is data classification algorithm.it is used to generate decision tree from given data set.decision is used to make strategic decision from generated decision tree.

crm的详细解释于搭建，有助于大家互相学习。有丰富的客户需求以及解决方案(sda wrewf sdf waer erv edwfv ewfsefvs)

springMVC中使用hibernateValidate jsr-303 annotation方式对前台进行规则校验(hibernateValidate jsr-303 annotation rules checksum to the front desk springMVC use)

用JAVA写的带通滤波代码，实现思路很简单，没有采用各种数字滤波的方法。而是通过傅里叶变换到频域，将要求外的频率均置0，再逆傅里叶变换得到的。效果还不错。(Written using JAVA bandpass filtering code to achieve the idea is very simple, without using a variety of digital filtering approach. But through the Fourier transform to the frequency domain, the frequency requirements are set to 0, then the inverse Fourier transform. Results were pretty good.)

java的字符串string程序例子，适合于初学java编程的开发者下载学习(java string string program examples, suitable for beginner java programming, developers download learning)

说明：  CAD数字批量加减乘除,命令TX，CAD加载插件后，按命令行提示操作即可(CAD digital batch addition, subtraction, multiplication and division)