Sending and Receiving 2D Arrays java

Question

What I would like to achieve by asking this question is to learn how to send and receive 2-Dimensional Arrays to another computer.

The context is that the <

Answer 1

This will work with any primitive type arrays and Object arrays if object type is instanceof Serializable

server

    ServerSocket ss = new ServerSocket(port);
    Socket s = ss.accept();
    ObjectInputStream is = new ObjectInputStream(s.getInputStream());
    byte[][] array = (byte[][])is.readObject();

client

    byte[][] array = new byte[10][10];
    Socket s = new Socket("host", port);
    ObjectOutputStream os = new ObjectOutputStream(s.getOutputStream());
    os.writeObject(array);

Answer 2

You should create an object out of it. It´s easier to handle afterwards.
After that you serialize it, then you split it in smaller byte[] (if it´s bigger then 64 kb). You add some bytes to each packet, I prefer
byte[0] = is splited?
byte[1] + byte[2] = sendNumber (just for controlling, it increases after every sent object)
byte[3] = how many parts your object has
byte[4] = what part is it
What you need else.
Afterwards you can easily put the parts together.
I have never used it but i also found a library know as kryonet (while googling).
Have a look... google it properly.