import java.io.*;
import java.util.Scanner;
import java.util.Vector;

public class MedicalOrganizer {


    public static void main(String[] args) {

        Scanner get = new Scanner (System.in);
        Vector strUser, strPassword;
        String strLoginU, strLoginP;
        boolean blnLogged = false;

        strUser  = new Vector();
        strPassword = new Vector();

        System.out.println ("Login...");

        while (blnLogged == false) {

            System.out.print ("\nUsername: ");
            strLoginU = get.next();
            System.out.print ("Password: ");
            strLoginP = get.next();

            int i = 0;

            try {
                DataInputStream uin = new DataInputStream(new FileInputStream("Usernames.ini"));
                DataInputStream pin = new DataInputStream(new FileInputStream("Passwords.ini"));
                while ((uin.available() != 0) && (pin.available() != 0)) {

                    strUser.addElement(uin.readLine());
                    strPassword.addElement(pin.readLine());

                    if ((strLoginU.compareTo(String.valueOf(strUser.elementAt(i))) == 0) && (strLoginP.compareTo(String.valueOf(strPassword.elementAt(i))) == 0)) {
                        blnLogged = true;
                    }

                    i++;
                }
            } catch (Exception e) {
                System.err.println (e);
            }

            if (blnLogged == false) {

                System.out.println ("\nIvalid username/password, please try again.");
            }
        }

        System.out.println ("\nAccess granted.");
    }
}