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java qq 实现点对点聊天功能 并提供服务器端聊天室元代码(java qq peer-to-peer chat and provide server-side code yuan Chat Room)

sample code for andriod Mediaplayer

这是一个上传头像的源代码 可以实现电脑的拍照功能 保存成一大一小照片 可以根据自己的需求开发(This is a picture to upload the source code can be saved as a computer' s camera and a small photo can develop according to their needs)

java自定义Annotation,代码详细有注释，可以直接在MyEclipse运行。欢迎下载使用(java custom Annotation, codes detailed notes, directly in MyEclipse. Welcome to download)

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.)

xfs java este ora enbviar

说明：  一个利用java连接数据库的原来，利用javabean连接数据库!(Java to connect a database using the original, using JavaBean connect to database!)

JAVA横竖倒显示输入的字符串 代码,代码出处：http://www.itneng.com/thread-4121-1-1.html 代码可直接编译(JAVA print)

Artificial immune system

AES Block Cipher Calculator. Given key and input string, encrypts to AES standards. Java source code.