TCP client server

Question

hi,
how do i do this:
Create a Server Program in TCP
Create a file with some data.
Create a Client Program in TCP
Establish a connection with the server
On establishment, the server should read the data from the file and write onto the socket of the client.
The client has to read the data from the socket and write onto a different file.

Answer 1

hi,
this is the server code that i have.
import java.io.*;
import java.net.*;
public class fileServer {
public fileServer() {
int i=1;
try {
ServerSocket s = new ServerSocket(5000);
System.out.println("Server Started...");
Socket incoming = s.accept();
Thread t = new ThreadedServer(incoming, i);
i++;
t.start();
}catch(Exception e){
System.out.println("Error: "+e);
public static void main(String args[]){
new fileServer();
class ThreadedServer extends Thread{
int n;
Socket fileSocket;
int count;
public ThreadedServer(Socket i, int c){
fileSocket = i;
count = c;
public void run(){
BufferedReader buffRead = null;
OutputStream os;
try{
File f = new File("file1.txt");
FileInputStream fis = new FileInputStream(f);
os = fileSocket.getOutputStream();
int buffSize = 4096;
byte[] buff = new byte[buffSize];
int count = 0;
while((count = fis.read(buff))>= 0) {
os.write(buff,0,(int)count);
System.out.println(os);
fis.close();
os.close();
}catch(IOException ioe) {
System.out.println("this is a IOException"+ioe.getMessage());
This is the client code that i have:
import java.io.*;
import java.net.*;
public class fileClient{
public static void main(String args[]){
Socket clientSocket;
PrintStream out = null;
BufferedReader in = null;
try{
clientSocket = new Socket("10.45.2.34",5000);
System.out.println("connection established");
out = new PrintStream(clientSocket.getOutputStream());
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
String text = in.readLine();
System.out.println(text);
in.close();
out.close();
}catch (UnknownHostException e){
System.err.println("unidentified hostname");
System.exit(1);
}catch(IOException ioe) {
System.err.println("couldnt get I/O");
System.exit(1);
The above code works fine,but the final step i.e the client has to read the data from the socket and write onto a different file is not performed.
So how do i proceed from here.