import java.util.Scanner;

public class Usernames {

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

        System.out.print("Type your username: ");

                String username = reader.nextLine();

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

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