public class FamilyCollection {

    private ArrayList<FamilyMember> family = new ArrayList();

    public void remove(FamilyMember member){
        family.remove(member);
    }
    public void add(FamilyMember member){
        family.add(member);
    }
    public FamilyMemberIterator createIterator(){
        return new FamilyMemberIterator();
    }

    private class FamilyMemberIterator implements Iterator{

        private int current = 0;

        @Override
        public boolean hasNext() {
            if(current == family.size()){
                return false;
            } else {
                return true;
            }
        }

        @Override
        public Object getNext() {
            return family.get(current++);
        }
    }
}