Socket send and receive byte array

Question

In server, I have send a byte array to client through Java socket

byte[] message = ... ;

DataOutputStream dout = new DataOutputStream(client.getOutputStream         


        

Answer 1

First, do not use DataOutputStream unless it’s really necessary. Second:

Socket socket = new Socket("host", port);
OutputStream socketOutputStream = socket.getOutputStream();
socketOutputStream.write(message);

Of course this lacks any error checking but this should get you going. The JDK API Javadoc is your friend and can help you a lot.