Java语言是Internet上新兴的编程语言，对Java的特性以及基本的编程方法已有很多文章作过介绍。但是，广大Java爱好者更希望了解Java更深一步的编程方法，本文就Java的网络功能及其编程方法作一初步的介绍。-Java language is on the emerging Internet programming language, Java' s features as well as basic programming methods have been made introducing a lot of articles. However, the majority of Java enthusiasts hope that deeper understanding of Java programming method, this paper, the network functions and the Java programming method to make a preliminary introduction.