AbstractItemVisitor

数字证书注册和签发系统，利用JCA和JCE实现数字证书的注册，并提供一个密钥库管理以及私钥的存储和导出以及传输得安全机制(Digital certificate registration and issuance system, the use of JCA and JCE realize digital certificate registration, and provide a key database management, and private key storage and export, as well as a security mechanism for transmission)

EULER numerical analysis method, It has a wealth of parameter options, Use Chaos and fractal analysis routines.

xfs java este ora enbviar

a basic rpc java example

网络版的五子棋，与众不同的享受，让你在游戏之余还能与人交流沟通。(Internet version of the Gobang, distinctive enjoyed the game while you can communicate with people.)

简单的实现了一般的串口通讯

Java P2P 技术内幕，电子书，pdf格式(Insider Java P2P technology, e-books, pdf format)

java 调用 kettle 对数据进行过滤，处理，转换 ，数据文件转换为 数据库文件(Java calls kettle to filter, process, transform, and convert data files into database files)

LL(1)文法和预测分析方法 1.文法使用产生式来定义； 2.分别求出文法中每一个非终结符的FIRST集、FOLLOW集和SELECT集； 3.画出预测分析表； 4.判定给定的文法是否是LL(1)文法； 5.给定符号串判定是否是文法中的句子，分析过程用分析表格的方式打印出来。(LL(1) Grammar and Predictive Analysis 1. Grammar is defined by production. 2. Find out the FIRST set, FOLLOW set and SELECT set of each non-terminator in grammar. 3. Draw a forecast analysis table. 4. Determine whether a given grammar is LL(1) grammar; 5. Given a string of symbols to determine whether it is a sentence in grammar, the analysis process is printed out in the form of an analysis table.)

JAVA编写的一个信息管理系统。学生信息管理系统(JAVA prepared an information management system. Student Information Management System)