@Override public IntBidirectionalIterator iterator() { return IntIterators.unmodifiable(sortedSet.iterator()); } @Override
@Override public IntBidirectionalIterator iterator(final int from) { return IntIterators.unmodifiable(sortedSet.iterator(from)); } @Override
@Override public IntListIterator listIterator() { return IntIterators.unmodifiable(list.listIterator()); } @Override
@Override public IntIterator iterator() { return IntIterators.unmodifiable(collection.iterator()); } @Override
@Override public IntListIterator listIterator(final int i) { return IntIterators.unmodifiable(list.listIterator(i)); } @Override