WinRAR-

随机产生数据，输入大小值，大了或小了都有显示。还可以继续玩，如果猜对的话，也可以退出 (Randomly generated data, the value of the input size, big or small are displayed. Can continue to play, if you guess right, you can exit)

tfidf的计算的java实现，程序结构清晰，注释易懂,(java tfidf calculated to achieve a clear program structure, comments to understand,)

说明：  设计两个接口，每个接口包含两个方法。构造一个新接口，继承上述两个接口， 并增加一个新的方法。构造一个类 Test 实现这个新的接口，并继承另一个类。创建类 Test 的实例对象，并调用类 Test 中全部的成员方法。(Design two interfaces, each containing two methods. Construct a new interface, inherit the above two interfaces, And add a new method. Construct a class test to implement the new interface and inherit another class. Create class Test, and call all member methods in the class test.)

jdk与jre的重要区别，好东西我不是这么轻易与人分享的(jdk and jre an important distinction, good thing I' m not so easily shared with others)

此代码的功能是实现一个简单的计算器，用JAVA语言编写完成()

Java 网络编程 pdf 和 epub 格式 OReilly.Java.Network.Programming.4th.Edition.Oct.2013(OReilly Java Network Programming 4th Edition Oct.2013)

一个关于系统的JAVA源码 里面有详细的说明和模拟售票系统程序(A system about JAVA source with detailed instructions and simulate the ticketing system program)

Robocode坦克大战平台简单（SimpleBot）机器人示例--RedCarp.java和Zergling.java(Examples of simple the Robocode Tankedaizhan platform (SimpleBot) robot- RedCarp. Java and Zergling.java)

新闻管理后台静态页面，对做一些Java语言的后台页面有帮助(News management background static page, helpful to do some Java language background page)

This is the root object from which all other objects in this package are derived. This class is never directly instantiated (and hence it is abstract).