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Jsenddump java 开发的基于winpcap,jpcap(Jsenddump java-based development winpcap, jpcap)

比较实用的Java逻辑算法，在JAVA日常编程时可以借鉴或直接引用。(Java logic algorithms more practical, everyday programming in JAVA can draw or direct references.)

pdf在线预览，动态查看，以文件流的形式查看(pdf Online preview, dynamic view, view in the form of file stream)

说明：  ipdatabase 二叉树快速搜索IP地址数据库 数据 数据源采用2015年广告协会制定的IP地址标准数据库，中国互联网广告行业统一采用的标准IP库。 原理 利用二叉树实现IP查询，首先将10进制IPV4地址转化为二进制构建二叉树，利用二叉树搜索进行搜索，查询时间复杂度log2n，比传统IP库n的查询速度高出一个量级。(Ipdatabase Binary Tree Fast Search IP Address Database data The data source is the standard IP address database formulated by the Advertising Association in 2015, and the standard IP database adopted by the Internet advertising industry in China. principle The binary tree is used to realize IP query. Firstly, the 10-bit IPV4 address is converted into binary to construct a binary tree, and the binary tree search is used to search. The query time complexity log2n is one order of magnitude higher than that of traditional IP library n.)

JPEG Algorithm using java

java源码中调用oracle数据库中的function(for oracle function used in java)

初学习java的，可以照着练习下，找找感觉(this is a file include small java program.the man who have learn java for a small time can copy this program and learn java.)

说明：  自己封装的常用IO包，文件流和字符流通用，windows和linux环境下都有(Own package of common IO package, document flow and circulation with the characters, under both windows and linux environment)

java 支付宝在线支付实例源码下载(即时到帐接口)

Returns whether this {@code Enumeration} has more elements.