Introduction - If you have any usage issues, please Google them yourself
Currently running Java Approximately 30 million devices, while a basic file transfer protocol application layer protocol in accordance mode client/server, providing interactive access, is one of the most widely used INTERNET agreement. Especially in the mobile terminal APP development, more use of the Java language, Java language-based exploration of the file transfer will have its necessity. This paper describes the realization of java-based language with a graphical interface, file transfer systems, such as the use SOCKET and SERVERSOCKE class method, which implements upload, download, access to directories and other basic file transfer capabilities