java transfer file using socket

//Open a socket 
Socket socket =  new Socket() ; 
OutputSteam opt = socket.getOutputStream ; 

File file = new File("test.txt") ; 
FileInputStream fis = new FileInputeStream(file) ; 

byte[] data = new byte[ 1024 * 16 ] ;
int count  ; 
while( (count  = fis.read(data))  > 0){
  opt.write(data , 0 , count) ; 
}