import java.util.ListIterator; public class OneTeaBag extends TeaBags { public OneTeaBag(String nameIn) { this.setName(nameIn); } public int countTeaBags() { return 1; } public boolean add(TeaBags teaBagsToAdd) { return false; } public boolean remove(TeaBags teaBagsToRemove) { return false; } public ListIterator createListIterator() { return null; } }