C语言精彩编程百例14

一个不错的JAVA程序，实现一个球在平面内碰撞的功能。-JAVA a good procedure, the realization of a ball in the plane collision function.

图书馆系统＿毕业设计数据库是acce-_ Graduate library system design database is acce

java编写的简单小游戏，供大家学习用，里面包括论文报告，和设计文档-java编写的简单小游戏，供大家学习用

该文件为编译器的的自顶向下分析法的代码-document for the compiler of the top-down analysis of code

JAVA实现基于数据库的学生成绩管理系统-Student achievement based on database management system

Complete steps and project for developing a server project and procedure to deploy and execute the project. This article/tutorial with code will make you to develop your own web projects. For more details and more tutorials and more projects for EJB, BMP, CMP,

人机对战java版中国象棋源代码，可在NetBeans或eclipse下调试-Human-computer version of Chinese Chess Battle java source code, available at NetBeans or eclipse debug

类SingleServer是单客户机制的服务器端程序 类SingleClient是单客户机制的客户端程序 该程序实现简单的聊天功能-category SingleServer single client to the server side mechanism procedures category SingleClient single customer mechanism client of the program simple chat

jsp java md5的实现代码 可用于密码处理等用途-jsp java md5 code can be used to realize the deal with password etc.

简介 JavaEE在开发的时候，如果是系统内部常量，一般提倡用枚举常量类，写在单独的类中，但是经常要修改的变量,比如数据源配置，如果存在数据库中，有种浪费。但是存在TXT中扩展性不好，就笔者观察，一般的程序员都喜欢把经常修改的常量存在xml文件或者properties文件。 存在xml文件最大的好处是扩展性很好，一般用sax或者dom这两个方向的框架，比如DOM4J,JDOM等。Sun推出的JAXM(Java API for XML Messaging)也是用的DOM4J。由于SAX的处理方式类似流媒体，是逐行的，不需要全部加载。而DOM是全部加载在内存，生成树。因而SAX的读取比DOM性能好，但是修改的话DOM略胜一筹。properties文件的扩展性不如xml，但是有很多xml没法实现的优势，比如加密之类的~ Helloworld 笔者根据自己开发中感受，写了一个工具包，用来体现读取xml或者properties的流程，大家在使用的时候记得修改文件路径。一共包含五个文件.本demo主要是用来模拟读取数据库的账户和密码的，读者可以在此基础上扩展。-Brief introduction JavaEE development at the time, if the system constants are generally used to promote constant enumeration type, write in a separate category, but often want to modify the variables, such as the data source configuration, if the database exist, in one waste. But the existence of bad TXT extension on my observation, the programmers in general are often modified to enjoy the constant existence xml documents or document properties. Xml files exist to expand the biggest benef