import java.util.ArrayList;
import java.util.Iterator;
import java.util.NoSuchElementException;

public class Handleliste implements Iterable<Matvare> {
    private ArrayList<Matvare> matvareListe = new ArrayList<>();
    private String navn;

    public Handleliste(String na) {
        navn = na;
    }

    public void leggTilMatvare(Matvare vare) {
        matvareListe.add(vare);
    }

    @Override
    public Iterator<Matvare> iterator() {
        return new HandlelisteIterator();
    }

    private class HandlelisteIterator implements Iterator<Matvare>{
        int indeks = 0;

        @Override
        public boolean hasNext() {
            return indeks < matvareListe.size();
        }

        @Override 
        public Matvare next() {
            if (! hasNext()) {
                throw new NoSuchElementException("Ingen flere matvarer");
            }
            Matvare returneres = matvareListe.get(indeks);
            indeks++;
            return returneres;

            // return matvareliste.get(indeks++);
        }
    }
}