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

public class Onlinebankrobot {
    public static void main(String[] args) throws Exception {

  if (args.length != 2) {
     System.err.println("Usage:  java Onlinebankrobot userid password");
     System.exit(1);
  }
  URL url = new URL("http://127.0.0.1/cgi-bin/bank05.cgi");
  URLConnection connection = url.openConnection();
  connection.setDoOutput(true);
  PrintWriter out = new PrintWriter(connection.getOutputStream());
  String querystring="name="+args[0]+"&password="+args[1];
  
  out.println(querystring);
   
  out.close();

  BufferedReader in = new BufferedReader(
            new InputStreamReader(
            connection.getInputStream()));
  String inputLine;
  int startindex;
  int endindex;
  while ((inputLine = in.readLine()) != null){
     startindex=inputLine.indexOf("Balance:");
     if(startindex!=-1){
        endindex=inputLine.indexOf("</",startindex);
        String balance=inputLine.substring(startindex,endindex);
        System.out.println(balance);
        in.close();
        System.exit(0);
     }
  }
  System.out.println("Database was unable to verify your userID or password");

  in.close();
  }
}