import java.io.*;
import java.net.*;

public class SocketClient
{
  public static void main(String[] args) throws IOException
  {

    Socket theSocket = null;
    PrintWriter out = null;
    BufferedReader in = null;

    try
    {
      theSocket = new Socket("www.yahoo.com", 80);
      out = new PrintWriter(theSocket.getOutputStream(), true);
      in = new BufferedReader(new InputStreamReader(theSocket.getInputStream()));
    }
    catch (UnknownHostException e)
    {
      System.err.println("Don't know about host: www.yahoo.com.");
      System.exit(1);
    }
    catch (IOException e)
    {
      System.err.println("Couldn't get I/O for the connection to: www.yahoo.com.");
      System.exit(1);
    }

    BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
    String userInput;

    while ((userInput = stdIn.readLine()) != null)
    {
      out.println(userInput);
      System.out.println("echo: " + in.readLine());
    }

    out.close();
    in.close();
    stdIn.close();
    theSocket.close();
  }
}