cattsoft

根据中国天气网，查询城市天气。根据城市编号添加城市，也可根据城市名称查询城市编号(According to Chinese weather site, check the city weather. According to City Code to add the city, can also inquire about the city numbered according to city name)

JAVA实现的TFTP，类似与FTP的功能，有服务器、客户端，可以实现文件上传到服务器。(JAVA implementation of TFTP, and FTP similar functions, have the server, the client, you can achieve a file upload to the server.)

说明：  基于springboot实现的多线程并发任务，创建多任务并发执行的DEMO(Multi-threaded concurrent tasks based on spring boot to create DEMO for multi-task concurrent execution)

javappt 是老师上课时的课件 适合初学者(javappt is the teacher' s courseware class for beginners)

说明：  本文件是《GPS全球定位接收机-原理与软件实现》（电子工业出版社，鲁郁著。）的配套源程序，希望能给学习GPS的同学带来帮助哦！(This document is "GPS global positioning receiver - principle and software implementation" (Electronic Industry Press, Lu Yu) The supporting source program, I hope to help students learn GPS Oh!)

要求设计一个SP00LING输出进程和两个请求输出的用户进程，以及一个SP00LING输出服务程序。当请求输出的用户进程希望输出一系列信息时，调用输出服务程序，由输出服务程序将该信息送入输出井。待遇到一个输出结束标志时，表示进程该次的输出文件输出结束。之后，申请一个输出请求块(用来记录请求输出的用户进程的名字、信息在输出井中的位置、要输出信息的长度等)，等待SP00LING进程进行输出。 SP00LING输出进程工作时，根据请求块记录的各进程要输出的信息，将其实际输出到打印机或显示器。这里，SP00LING输出进程与请求输出的用户进程可并发运行。 (Asked to design a user process SP00LING request output and two output processes, and outputs a SP00LING service program. When users want to process requests output output range information, call the output service program, service program by the output information into the output shaft. Treatment to an output end of the flag, which means that the process of the second output file output end. Thereafter, the application of an output request block (name of the user to record the output of the process request, the information on the position of the output well, and length information to be outputted), the process waits SP00LING output. When SP00LING output process work, information requested under each process block records to be output, its actual output to a printer or monitor. Here, the user process and the output process SP00LING request output can be run concurrently.)

Java赌神手机游戏网络版源代码，研究手机游戏的朋友可要看一下啦，记得在05年时候，这款游戏还是相当流行的，这个源代码就是那个时候的产物。(God of Gamblers Mobile Games Java source code for online research of mobile gaming friends can see what啦, I remember in 2005 when the game is still very popular, this source code is a product of that time.)

calculate catalan number

编写HibernateUtil工具类，用工厂方法设计模式实现(Write HibernateUtil tools with factory method design pattern)

socket 学习文件，供各位参考学习。(Socket learning file)