Java具有平*立、面向对象、多线程等许多优点，是目前最为优秀的编程语言。所以，得到广大编程人员的喜爱，因而在网络编程方面Java已成为首选的编程语言。 -Java has a platform-independent, object-oriented, multi-threaded, and many other advantages, is the most outstanding programming languages. Therefore, the vast numbers