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import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
public class TCPServer
{
	public static void main(String args[]) throws Exception
	{
		ServerSocket sersock = new ServerSocket(4000);
		System.out.println("Server ready for connection");
		Socket sock = sersock.accept();
		System.out.println("Connection successful | wating for filename");
		InputStream istream = sock.getInputStream( );
		BufferedReader br =new BufferedReader(new InputStreamReader(istream));
		String fname = br.readLine( );
		BufferedReader contentRead = new BufferedReader(new FileReader(fname) );
		OutputStream ostream = sock.getOutputStream( );
		PrintWriter pwrite = new PrintWriter(ostream, true);
		String str;
		while((str = contentRead.readLine()) != null)
		{
			pwrite.println(str);
		}
		System.out.println("File Contents sent successfully");
		sock.close(); sersock.close();
		pwrite.close(); br.close(); contentRead.close();
	}
}

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import java.net.*;
import java.io.*;
public class TCPClient
{
	public static void main( String args[ ] ) throws Exception
	{
		Socket sock = new Socket( "127.0.0.1", 4000);
		System.out.print("Enter the file name\n");
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String fname = br.readLine();
		OutputStream ostream = sock.getOutputStream( );
		PrintWriter pwrite = new PrintWriter(ostream, true);
		pwrite.println(fname);

		InputStream istream = sock.getInputStream();
		BufferedReader socketRead = new BufferedReader(new
		InputStreamReader(istream));
		String str;

		while((str = socketRead.readLine()) != null) // reading line-by-line
		{
			System.out.println(str);
		}

		pwrite.close(); socketRead.close(); br.close(); sock.close();
	}
}