Client recieve byte array

Question

hi
I'm trying to send an array of bytes from a server to a client. I wrote the sending code n the server side, but i didn't know what to write to recive it in the client. can anyone help?!
Thanks
sending code:
while(true)
Socket     connsock = ssock.accept();
InputStreamReader instr =new InputStreamReader(connsock.getInputStream());
DataOutputStream outstr =new DataOutputStream(connsock.getOutputStream());
BufferedReader innet = new BufferedReader(instr);
message1 = innet.readLine();
byte[] byteArray = new byte[20];
outstr.write(byteArray, 0, (20); }
messageout = message1+ "\n";          
outstr.writeBytes(messageout);
     }

Answer 1

import java.io.*;
import java.net.*;
public class Prf extends Thread {
     public void run() { //Read form file and writer to socket
          try {
               Thread.sleep(100);//sleep(100) while server is getting ready to accept connection
               System.out.println("Connecting...");
               Socket soc = new Socket("localhost",4070);
               OutputStream outS = soc.getOutputStream();
               FileInputStream fis = new FileInputStream("input.dat");
               int i = 0;
               byte[] b = new byte[1000000]; //1MB buffer
               for(;;) {
                    i = fis.read(b); //read from file (i - number of read bytes)
                    if (i != -1) {// checking for end of data
                         outS.write(b,0,i); //write portion (0..i) of bytes to socket
                    } else {
                         break;
               fis.close();
               outS.close();
               soc.close();
          } catch (IOException e) {
               System.out.println(e.getMessage());
          } catch (InterruptedException e) {
               System.out.println(e.getMessage());
     public static void main(String[] args) {//Read from socket and write to file
          Prf prf = new Prf();
          try {
               ServerSocket sSoc = new ServerSocket(4070);
               prf.start(); //start writer
               Socket soc = sSoc.accept();
               System.out.println("Connection's accepted");
               InputStream inS = soc.getInputStream();
               FileOutputStream fos = new FileOutputStream("output.dat");
               int i = 0;
               byte [] b = new byte[1000000]; //buffer
               while (true) {
                    i = inS.read(b);//read from socket (i - number of read bytes)
                    if (i != -1) { //check for end of data
                         fos.write(b,0,i); //write portion (0..i) of bytes to file
                    } else {
                         break;
               fos.close();
               inS.close();
               soc.close();
               sSoc.close();
          } catch (IOException e) {
               System.out.println(e.getMessage());
}