Slow read problem

Question

Hi all,
I'm quite new in java and I have a question. I am trying to implement an simple Client-Server file transfer program. Everything works fine except that there is 1 small issue. It takes a long time to read the data from the data input stream. In my Client, I have the following code.
ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());
DataInputStream dis = new DataInputStream(socket.getInputStream());
PrintStream os = new PrintStream(socket.getOutputStream());
// Do something
dis.ReadFully(buffer);  // This line took about 5.5 seconds average to finish executing.
                                //buffer size is about 64K bytes.
.I have timed the server sending data and the time it took was small. So I think the problem have to be the receiving side. I'm using 2 PCs networked together with a home router and LAN cables. One is the Server and one is the client. There is no software limiting upload and download speed. Is it because the DataInputStream is slow? Can someone tell me why it takes so long? If so, how to i improve it?
Thanks in advance.

Answer 1

ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());What's that for?
DataInputStream dis = new DataInputStream(socket.getInputStream());If you don't need the ObjectInputStream, delete it, and any ObjectOutputStream you may have at the other end. The ObjectInputStream is reading a header from the socket. which may be putting your application protocol out of sync, which might in turn explain your read delays. If you do need the ObjectInputStream, it extends DataInputStream so you don't need the DataInputStream.
PrintStream os = new PrintStream(socket.getOutputStream());Don't use PrintStreams or PrintWriters over a network. They absorb exceptions, and you need to know about those.