import java.util.Iterator;

abstract class EnkelReseptListe implements Iterable<Resept> {
	protected class Node {
		Node next;
		Resept val;

		Node(Resept val) {
			this.val = val;
		}
	}

	Node first;
	Node last;

	abstract public void settInn(Resept val);

	public Resept finn(int id) {
		Node n = first;

		while (n != null) {
			if (n.val.id == id)
				return n.val;

			n = n.next;
		}

		return null;
	}

	public Iterator<Resept> iterator() {
		return new Iterator<Resept>() {
			private Node n = first;

			public boolean hasNext() {
				return n != null;
			}

			public Resept next() {
				Resept r = n.val;
				n = n.next;
				return r;
			}
		};
	}
}