模拟TCP协议下的客户-服务器服模式的服务器程序端运行-Simulation of TCP client under the agreement- server service model client server program to run

通过socket建立TCP的文件传输和UDP在线聊天服务，采用客户端服务器模式-Socket through the establishment of TCP and UDP file transfer online chat service, using client-server model

UDP 是User Datagram Protocol的简称， 中文名是用户数据包协议，是OSI（Open System Interconnection，开放式系统互联） 参考模型中一种无连接的传输层协议，提供面向事务的简单不可靠信息传送服务-User Datagram Protocol UDP is short, the Chinese name is the User Datagram Protocol, is the OSI (Open System Interconnection, Op

Tcp client server communication using Java The client–server model is a distributed application structure that partitions tasks or workloads between the providers of a resource or service, called servers, and service requesters, called clients.[1]