import java.io.*;
import java.net.Socket;
 
public class ClientMain {
 
    public static void main(String[] args) {
        String hostName = "localhost";
        int portNumber = 9999;
 
        try {
            Socket socket = new Socket(hostName, portNumber);
 
            BufferedReader sin = new BufferedReader(
                    new InputStreamReader(socket.getInputStream()));
 
            File file = new File("\folder\subfolder\image.jpg");
            long length = file.length();
            byte[] bytes = new byte[64 * 1024];
            InputStream in = new FileInputStream(file);
            OutputStream sout = socket.getOutputStream();
 
            int count;
            while ((count = in.read(bytes)) > 0) {
                sout.write(bytes, 0, count);
            }
            in.close();
            sout.flush();
 
            String fromServer;
            while ((
                    fromServer = sin.readLine()
            ) != null) {
                System.out.println("Server: " + fromServer);
            }
 
            sout.close();
            sin.close();
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
 
    }
 
}