calculator

说明：  利用前面提到的SupplyDepot、Transport和CapableOfBeingRefefuelled类/接口，为Air-plane增加一个main()方法，然后为supplyDepot等增加必要的字段、参数和代码，以便CapableOfBeingRefefuelled能够告诉service（）方法需要加多少油。同时要确保Depot中的油应相应地减少，而实现CapableOfBeingRefefuelledi的类对象应相应地增加。(Using the upplyDepot, Transport and ApableOfBeingRefefuelled classes/interfaces mentioned above, add a main () method to Air-plane, and then add the necessary fields, parameters and codes to supplyDepot, so that CapableOfBeingRefefuelled can tell service () how much fuel the method needs. At the same time, we should ensure that the oil in Depot should be reduced accordingly, and the class objects that implement Capable OfBeingRefefuelledi should be increased accordingly.)

说明：  学习用的,很简单的图形界面.它是一个简单的界面,加事件,以及2D的图形绘制的例子(the study, a very simple graphic interface. It is a simple interface, plus events, and the 2D graphic example)

刚下载的一款源代码，不知道有么事功能，大家运行的看看吧(Just downloaded a source code, do not know Why things function, we see it run)

this is java aoolication project

基于java的新浪微博的爬虫程序 Java-based Weibo crawler(Java-based Weibo crawler)

海康威视 java 窗口程序 demo(hikivision java demo)

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)

java语言开发的彩色图形，对于学习java语言中的色彩应用，十分有帮助(this is a java program which paint a colorful circle,this program is helpful to those who want to know how to use color in java)

java编程实例,有一百多实例,仅供学习java编程(Java programming instance, there are more than 100 instances, only for learning java programming)

ssm(struts2+spring+mybatis)写的一个demo,实现简单的增删改查，了解ssm开发流程，适合新手(ssm (struts2+spring+mybatis) write a demo, to achieve simple CRUD understand ssm development process for novices)