class FigurerHovedprogram {
    public static void main(String[] args) {
        Firkant f = new Firkant(4, 4);
        Firkant k = new Kvadrat(4);
        Firkant k2 = new Kvadrat(4, "gul");

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

        }

        System.out.println(f);
        System.out.println(k);
        System.out.println(k2);
    }
}