MD5_Java_Bean_SourceCode

说明：  java AES 和 DES加密解密工具类(Java AES and DES Encryption and Decryption Tool Class)

1. 分别使用Vector、Hashtable、Stack，ArrayList、LinkedList和HashSet作为容器类，实现以下要求： (1) 向容器中添加1,000,000个随机整数。 (2) 遍历容器中的所有元素。 (3) 随机产生100,000个整数，在容器中查找这些整数。 (4) 随机产生100个整数，从容器中删除这些整数。 (5) 统计完成以上各个操作需要的时间。 比较一下不同操作在不同数据结构下的性能差异。程序文件命名为Exe5_1.java。 (51 respectively using Vector, Hashtable, Stack, ArrayList, LinkedList and HashSet as the container class, to achieve the following requirements: ( 1) are added to the container 1000000 random integers. ( 2) to traverse all the elements in the container. ( 3) 100000 randomly generated integer, in the container to find these integers. ( 4) random produces 100 integers, is removed from the container of these integers. ( 5) complete the statistics above each operation requires time. Compare the different operating at different data structure performance differences. Program file named Exe5_1.java )

基于JavaGUI的数学题练习平台，题目分为小学，初中，高中，每次测验后，会生成当前的测试成绩(JavaGUI-based Mathematics Exercise Platform, the topics are divided into primary, junior and senior high schools, after each test, the current test results will be generated.)

调用h2数据库管理用户注册，实现网上书城，购物车管理等功能(Call H2 database to manage user registration, realize online bookstore, shopping cart management and other functions)

OReilly Enterprise JavaBeans 3rd.pdf

java实现语法分析树，并进行优化分析树，源自哈尔滨工业大学数据库实验6，(parser tree for SQL by java)

在服务器与客户端，采用des算法与数字签名技术传送文件(The server and client, using des algorithm and digital signature technology to transfer files)

j2ee spring imagedb source code

给出了几种用java语言编写的登陆界面的例子，希望对初学者有帮助(Given several landing using java language interface examples, I hope to help beginners)

java使用snmp4j实现简单的对设备监控源码,完全可以使用，经过过本人测试运行。(Use simple java snmp4j source for equipment monitoring, can be used after the test run over me.)