How can I login on a remote server ?

Question

I want to copy some files from a remote server automatic by using a java program ,how can i do it?
I just can't login!!
i use the following code but I get nothing only the black green!!!
Any advise may be useful,
thanks in advance!
Socket s = SocketOpener.openSocket(host, port, timeout);
try
          System.out.println(s);
          BufferedReader read = new BufferedReader(new InputStreamReader(s.getInputStream()));
          PrintWriter write = new PrintWriter(s.getOutputStream(),true);
          write.println("username");
          write.println("passwd");      
     //     write.println("ls");
     //     write.println();
          boolean more=true;
          while(more)
               String line= read.readLine();
               if (line==null)more=false;
               else System.out.println(line);
     System.out.println("error");
     catch (IOException e)
     //     System.out.println("error"+e);

Answer 1

Why u r using Socket Class? Instead of this u use RMI.
In RMI u can access server remotely.I don't know that u know anything about RMI or not.If yes then ok,otherwise mail me I will tell u total detail of how to use RMI.
My email address
[email protected]