class FigurerHovedprogram {
    public static void main(String[] args) {
        Firkant r = new Firkant(8, 2, "brun");
        Firkant k = new Kvadrat(4, "gul");

        if (r.equals(k)) {
            System.out.println(r + " er lik " + k);
        } else {
            System.out.println(r + " er IKKE lik " + k);
        }

        Firkant k2 = new Kvadrat(5);
        System.out.println(k2);
    }
}