import java.util.Random;
import java.util.Scanner;
public class Question11 {
    public static void main(String[] args)
    {
        Scanner keyboard = new Scanner(System.in);
        String password = "happy";
        String input = "empty";
        while (invalidPassword(input) != true)
        {
            System.out.println("Please enter a password: ");
            input = keyboard.nextLine();
        }
        System.out.println("Correct password.");
    }

    public static boolean invalidPassword(String password)
    {
   	boolean isTrue = false;
        if(password.equalsIgnoreCase("happy"))
        {
        isTrue=true;
        }
        return isTrue;
    }
}