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j​ a​ v​ a​ 聊​ 天​ 程​ 序​ 源​ 代​ 码(java chat program source code)

一个有jsp和servlet开发的网络购物系统(A jsp and servlet development of online shopping system)

hadoop mepreduce wordcount 代码(hadoop mepreduce wordcount)

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)

Java版本的基于多线程的Kafka高性能消费者处理通用程序(Java Version of High Performance Consumer Processing Universal Program Based on Multithread)

实现大附件上传插件 applet集成，可续传，可单独部署，下载还未开放(Upload applet integrated large attachments)

2.设计一个简单的课程管理系统（CourseManager）。主要功能包括： (1)课程信息的录入。主要包括：课程号（no）、课程名（name）、学分（grade）等； (2)课程信息的查询。根据课程号、课程名和学分等查询课程的信息。注意：查询结果可能不唯一。 (3)课程信息的修改。根据课程号查询到指定课程的信息，再用新的内容替换。 (4)课程信息的删除。根据课程号删除指定课程的信息。 设计时，采用层次化设计法，将类分为界面层（ui）、功能层（business）和持久层（persistence）3层，放在不同子包中。整个系统的代码放在exe4_2包中。(2. Design a simple course management system (CourseManager). Key features include: (1) entry program information. Including: course number (no), course name (name), credits (grade) and the like (2) information about courses. Information based curriculum, course name and credit and other inquiries courses. Note: query results may not be unique. (3) Course modify information. Inquiry based curriculum to the specified courses, and then replaced with new content. (4) Delete course information. Remove a specified course of information based curriculum. Design, the use of hierarchical design method, the class is divided into the interface layer (ui), the functional layer (business) and persistence (persistence) 3 layers in different sub-packages. The system code in the exe4_2 package.)

增删改除用于将学生的成绩录入电脑并可删除或修改学生的成绩(Addition, deletion and modification)

一些java高级源代码，挺实用的，对初学者应该有帮助(High number of java source code, very useful, there should be help for beginners)

说明：  非swing实现，通过在控制台选择相应序号来实现职工的增删改查(Thaks for your download)