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

public class davidHashMapDemo
{

    Scanner keyboard = new Scanner(System.in);

    //Username as key, password as value
    HashMap<String, String>Records = new HashMap<String, String>();
    //Username as key, user's full name as value
    HashMap<String, String>userNames = new HashMap<String, String>();

    //File name from which all user information will be read
    String fileName = "database.txt";
    Scanner inputFile = new Scanner(fileName);

    //Variables to hold pertinent user information
    String userId, firstName, lastName, password;

    StringTokenizer t;
    String current;
    while(inputFile.hasNext())
    {
        current = inputFile.nextLine();
        t = new StringTokenizer(current, " ");

        //Scan the file for user information. This includes first
        //and last name, userId and password.
        while(t.hasMoreTokens())
        {
            firstName = t.nextToken();
            lastName = t.nextToken();
            userId = t.nextToken();
            password = t.nextToken();

            //Bring first and last name together to create
            //full name
            String fullName = firstName+" "+lastName;
            //Add information to each hashmap
            Records.put(userId, password);
            userNames.put(userId, fullName);
        }
    }

    //Ask the user for their information
    System.out.println("UserID: ");
    String id = keyboard.nextLine();
    System.out.println("Password: ");
    String userPassword = keyboard.nextLine();

    //Check to see if user information matches
    //something in the database file
    boolean check = false;



}