基于java的网络聊天工具，适合tcp/ip协议的初学者使用-Java-based web chat tool for tcp/ip protocol to use for beginners

java的网络开发，简单的应用java中的Socket，ServerSocket 实现TCP/IP协议 和UDP协议-java web development, simple application java socket the ServerSocket to achieve the TCP/IP protocol and UDP protocols

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]