Week1 Exercise 20 http://mooc.cs.helsinki.fi/programming-par

import java.util.Scanner;

public class Usernames {

    public static void main(String[] args) {
        Scanner reader = new Scanner(System.in);

        System.out.println("Type your username: ");
        String user = reader.nextLine();

        System.out.println("Type your password: ");
        String pass = reader.nextLine();

        if ((!(user.equals("alex")) && (pass.equals("mightyducks"))) || (!(user.equals("emily")) && (pass.equals("cat")))) {
            System.out.println("You are now logged into the system!");
        } else {
            System.out.println("Your username or password was invalid!");
        }
    }
}