java

java 到sql sever 数据库系统实现 图书管理系统 开发工具eclipse，含java代码，sql代码，课程设计word文档/已测试无error~ 模块功能介绍   2.2.1 管理员模块功能介绍 1.查询图书 此模块可以查询图书   2.借阅图书 此模块可以借阅图书 3.归还图书 此模块的可以归还图书 4.删除图书 此模块可以删除图书 5.添加图书 此模块可以添加图书 6.删除用户 此模块可以删除用户 7.查询用户 此模块可以查询用户   2.2.2 用户模块功能介绍 1.查询图书 此模块可以查询图书 2.借阅图书 此模块可以借阅图书 3.归还图书 此模块的可以归还图书 4.注册 此模块的可以用户注册

java实现的浮点数编码遗传算法，很有用，只需更改适应度函数即可(the complement of genetic algorithm by java, which is very useful via changing the fitness function for any use.)

室内指纹数据采集系统 采集室内WiFi信号强度，用于WiFi室内定位(Fingerprint Data Acquisition)

liferay portlet 实例，可以直接部署(liferay portlet instance, can be directly deployed)

通过这个程序，充分理解理解抽象类与接口的概念。(Through this program, understand fully understand the concept of abstract classes and interfaces.)

基于MVC模式的网上书店系统。实现了图书的查询，可以将需要的书籍加入购物车进行购买(MVC mode-based online bookstore system. Achieve a query of the books, the books required Add to cart to make a purchase)

This is Transport Application

java做的端口扫描器，很实用的哦，要码源的mail我。(java port scanner to do, very practical Oh, I want to code the source of the mail.)

创建四个类，分别为Employee类、SalariedEmplyee类、HourlyEmployee类和CommissionEmployee类。其中Employee类是其他三个类的父类。Employee类包含姓名和身份证号。除此之外，SalariedEmployee类还应包含每月工资；HourlyEmployee类还应包含每小时工资数和工作时间数；CommissionEmployee还应包含提成比例和销售总额。每个类都应有合适的构造方法、数据成员的设置和读取方法。编写一个应用程序，创建这些类的对象，并输出与对象相关的信息。注意子类有时需调用父类的构造方法和被覆盖的方法，成员变量定义为private,对有些方法实现重载。 (Create four categories, namely the Employee class, SalariedEmplyee class, HourlyEmployee classes and CommissionEmployee classes. Employee class is the parent class where the other three classes. Employee class contains the name and ID number. In addition, SalariedEmployee class also includes a monthly salary HourlyEmployee class should also include the number of hourly wages and the number of working hours CommissionEmployee should also include the proportion and total sales commission. Each class should have the right to set and read the constructor method, data members. Write an application to create objects of these classes, and output information associated with the object. Sometimes need to call attention to a subclass of the parent class constructor and methods are covered, member variables defined as private, to achieve overloading of some methods.)

用JAVA实现一般背包问题（附院码）比较实用(Knapsack problem)