Send a picture file using sockets

Question

Hi,
Could someone please tell me how I can send a picture file using sockets across a TCP/IP network? I have managed to do it by converting the file into a byte array and then sending it but I dont see the data back at the client when I recieve the file. I just see the byte array as having size 0 at client.
Byte array size is correct at client side.
//client code
System.out.println("Authenticating client");
          localServer = InetAddress.getLocalHost();
          AuthConnection = new Socket(localServer,8189);
          out = new PrintWriter(AuthConnection.getOutputStream());
          InputStream is = AuthConnection.getInputStream();
          System.out.println(is.available());
          byte[] store = new byte[is.available()];
          is.read(store);
     ImageIcon image = new ImageIcon(store);
          JLabel background = new JLabel(image);
          background.setBounds(0, 0, image.getIconWidth(), image.getIconHeight());
          getLayeredPane().add(background, new Integer(Integer.MIN_VALUE));
//extra code here
          catch (UnknownHostException e) {
System.err.println("Don't know about host: LocalHost");
System.exit(1);
          catch (IOException e) {
System.err.println("Couldn't get I/O for "
+ "the connection to: LocalHost");
System.exit(1);
//server code
               DataOutputStream out = new DataOutputStream(incoming.getOutputStream());
               FileInputStream fin = new FileInputStream("3trees.gif");
               byte[] b = new byte[fin.available()];
               int ret = fin.read(b);
               out.write(b);

Answer 1

i used OutputStream as
OutputStream out = incoming.getOutputStream(); and flushed the stream too.
But I still get the same output on the client side. I tried sending a string and it works , but I cant seem to be able to populate the byte array on the client side. It keeps showing zero. Please advise.
Thank you.