import java.util.Scanner;

public class Password {

    /**
     * This program will allow the user to validate his PIN number without actually putting in his real PIN numbers.
     */

    public static void main(String[] args) {
    Scanner keyIn = new Scanner (System.in);
    int count = 0;
    final int PASSWORD = 13379; // User's PIN number
    int addition = 1;
    int multiple = 3;
    String comparePassword = Integer.toString(PASSWORD); // Used to compare user input with password.


    //Print intro
    System.out.println("--------------------------------------------------------");
    System.out.println("           Welcome to Vansilli's Trust Bank");
    System.out.println("--------------------------------------------------------");


    System.out.println("\nPlease enter your 5 digit PIN based on the following:");

    //Set an array to print out the range of 10 numbers for the PIN.
    String[] PIN = {"0",  "1",  "2",  "3",  "4",  "5",  "6",  "7",  "8",  "9"};
    System.out.print("PIN: ");
    for(int j=0;j<PIN.length;j++)
        {
            System.out.print(PIN[j] + "  ");
        }

    //Generate 10 random numbers ranging from 1 to 3 under every digit.
    System.out.print("\nNUM: ");
    int[] Num = new int[10];
    for (int index = 0; index<10; index++)
        {
            Num[index] = (int)(Math.random()*multiple + addition);
            System.out.print(Num[index] + "  ");
        }

    //We ask the user to input his PIN.
    System.out.print("\nYour PIN:");
    int userInput = keyIn.nextInt();

    //Change the userInput into a string.
    String compareUser = Integer.toString(userInput);

    for(int i = 0; i < 5; i++)
        {
            String s1 = Character.toString(comparePassword.charAt(i));
            String s3 = Character.toString(compareUser.charAt(i));
            for(int j = 0; j < 10; j++)
                {
                    String s2 = PIN[j];
                    String s4 = Integer.toString(Num[j]);
                if(s1.equals(s2))
                {
                    if(s3.equals(s4))
                    {
                        count++;
                    }
                }
            }
        }

    if(count == 5)
        System.out.println("Correct!");
    else
        System.out.println("Invalid!");

    }

}