TCPclient.java

import java.io.*;
import java.net.*;
public class TCPclient
{
    public static void main(String [] args)throws IOException
    {
        Socket sock = new Socket("127.0.0.1",4000);
        System.out.println("Enter the filename");
        BufferedReader keyread = new BufferedReader(new InputStreamReader(System.in));
        String fname=keyread.readLine();
        OutputStream ostream = sock.getOutputStream();
        PrintWriter pwrite = new PrintWriter(ostream,true);
        pwrite.println(fname);
        InputStream istream = sock.getInputStream();
        BufferedReader sockread = new BufferedReader(new InputStreamReader(istream));
        String str;
        while((str=sockread.readLine())!=null)
            System.out.println(str);
        pwrite.close();
        sockread.close();
        keyread.close();
    }
}