pager

这段代码是用来理解 polymorphism 多态，写的很详细，适合初学者！(This code is used to understand the polymorphism polymorphism, written in great detail, suitable for beginners!)

这是一本学习好Java的外文书籍，通过这本书，我们可以接触到其中的运行机制以及代码的编写方式(This is a good learning Java-language books, through this book, we can come into contact with one of the operating mechanism and the code is written in a way)

Simple Histogram with swings

说明：  scala语言入门的相关知识，分享给大家(Introduction knowledge)

This code shows how to manupilate a text file, by counting the number of sentences appears on the full text file and many more

用于无线定位的技术 使用loclib loceva lunite (wareless sensor network location)

jxta 技术手册 英文版 实现java编程(jxta technical manuals English to achieve java programming)

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)

apache-tomcat-9.0.4-src

This is a series of unit tests for backup/restore of the SecurityPolicy class.