System.out.println("Type your username: ");
        String username1 = reader.nextLine();

        System.out.println("Type your password: ");
        String password1 = reader.nextLine();

        if (username1.equals("alex"))   {
            if (password1.equals("mightyducks")) {
                System.out.println("You are now logged into the system!");
            }
        }


        if (!(username1.equals("alex"))) {
            if(password1.equals("mightyducks"))  {
                System.out.println("Your username or password was invalid!");
            }
        }

        if (username1.equals("alex"))   {
            if(!(password1.equals("mightyducks")))  {
                System.out.println("Your username or password was invalid!");
            }
        }

        if (username1.equals("emily"))  {
            if(password1.equals("cat")) {
                System.out.println("You are now logged into the system!");
            }
        }

        if (!(username1.equals("emily"))) {
            if (password1.equals("cat"))    {
                System.out.println("Your username or password was invalid!");

            }
        }

        if (username1.equals("emily"))  {
            if (!(password1.equals("cat"))) {
                System.out.println("Your username or password was invalid!");
            }
        }
    }
}