abstract class Dyr {
    public void lagLyd() {}

    // kunne ogs? hatt metoden abstrakt, da M? den implementeres i subklassene
    //public abstract void lagLyd();
}

class Hund extends Dyr {


    @Override
    public void lagLyd() {
        System.out.println("Voff!");
    }

}

class Katt extends Dyr {

    @Override
    public void lagLyd() {
        System.out.println("Mjau!");
    }
}

class Oppgave1 {
    public static void main(String[] args) {
        Dyr fido = new Hund();
        fido.lagLyd();
        Katt pusur = new Katt();
        pusur.lagLyd();
    }
}