VirusHammer-0.1.1

运行时获得方法调用位置，包括方法、行数、物理文件名等。。。(模仿早些版本的llllog4j实现)(Run-time method calls to obtain the location, including the methods, the number of rows, physical file name and so on. . . (Imitating the realization of earlier versions of llllog4j))

文件管理系统 shixianwenjianshangchuanhuozhexiazai(Document Management System)

暂时放置在java中 lda的 还是不错的(lda em matlab)

java程序员上班那点事儿自己看过还可以的书免费跟大家共享(java programmer at work that point Shier his book can also be seen free of charge with the share)

java 即时聊天系统 自己看起来还不错，大家可以相互借鉴一下(java real-time chat system Looks good, we can learn from each other)

this is answer for ssd7 exercise 4

3.已知车辆（Vehicle）包括机动车（MotoVehicle）和非机动车（NonMotorVehicle）2种。小汽车（Car）、公交车（Bus）等属于机动车，自行车（Bicycle）等属于非机动车。随着能源技术的发展，出现了电动自行车（ElectricBicycle）、电动小汽车（ElectricCar）、天然气公交车（NaturalGasBus）等新型车辆。车辆的共同特征是都能够运行（run），并且有唯一的5位车牌号（LicenseNumber）。机动车的共同特征是采用燃油发动机（FuelEngine），且能够驾驶（drive）。自行车的共同特征是能够骑行（ride）。电动车辆的共同特征是由电池（Battery）驱动。天然气车辆的共同特征是采用天然气（NaturalGas）作为动力。 要求： (1)设计一个类体系描述上述车辆，写出它们的属性和方法。 (2)一家公司（Company）拥有10辆普通小汽车、5辆公交车、2辆电动小汽车和1辆天然气公交车，要求写一个方法listVehicles（）显示所有车辆的信息（车牌号以及采用的动力）。 程序文件命名为Exe4_3.java。(3. Known vehicle (Vehicle) including motor vehicle (MotoVehicle) and non-motorized (NonMotorVehicle) 2 species. Cars (Car), bus (Bus), etc. to motor vehicles, bicycles (Bicycle), etc. are non-motor vehicles. With the development of energy technologies, the emergence of electric bicycles (ElectricBicycle), electric cars (ElectricCar), natural gas buses (NaturalGasBus) and other new vehicles. A common feature of the vehicle is able to run (run), and there are only five license plate number (LicenseNumber). Common feature is the use of a motor vehicle fuel engine (FuelEngine), and is capable of driving (drive). Common feature is the ability to ride a bike (ride). Common characteristics of the electric vehicle is driven by a battery (Battery). A common feature is the use of natural gas vehicles (NaturalGas) as the driving force. Claim: (1) describe the design of a class system of the vehicle, write their properties and methods. (2) a company (Company) owns 10 ordinary cars, five buses, )

这是一个简单的java桌面应用软件。主要应用于酒店点餐和管理操作。能帮助到java的初学者(This is a simple java desktop application software. Mainly used in hotels ordering and management operations. Can help to java beginners)

Commom math library java

java常用类代码 String Buffer(universial class code)