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设计一个用户登录界面，输入用户名和密码后，点击登录按钮，若用户名为”JavaUser”，密码为”Java1234”，则允许登录，显示“登录成功!”，否则显示“登录失败！”。程序文件命名为Exe8_4.java。(Design a user login screen, enter your user name and password, click the login button, if a user named JavaUser , password is Java1234 , is allowed to login, Login successful! , Otherwise Login failed!. Program file named Exe8_4.java.)

Java大学实用教程（第2版）书中例子的程序源代码(Java University Practical Course (2nd edition) book example source code)

java软件设计建造模式实例.software design pattern java example of the construction.(software design pattern java example of the construction. software design pattern java example of the construction.)

手机中利用二维码进行定位.（标记部分） 程序包括两个部分,这部分为标记部分,需两部分配合使用(Project Name:QR_CodeScan_Baoji Description:Mobile phone use qr code to locate (tag))

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)

Database Performance Tests Source Code for Andriod.

说明：  这是关于遗传拼接算法，nesting，而且可以设置迭代次数(nesting This is about genetic splicing algorithm, nesting, and the number of iterations can be set.)

基于Java的数据结构算法演示系统，包含制作过程与要求(Java-based data structure algorithms presentation systems, including the production process and requirements)

一个简单的聊天室，用java做的，功能不是很全，但基本功能还是有的(A simple chat room, to do with java, feature is not very wide, but the basic function or some)

韩国仁荷大学电子系 java学期作业的报告部分（仅供参考）(Inha University Department of Electronics, java term operating section of the report (for reference only))