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

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

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

    public void leggTil(Matvare vare){
        handleliste.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 < handleliste.size();
        }

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