class CompactHashSet extends java.util.AbstractSet<E> {

  @Override
  public void clear() {
    elements = 0;
    for (int ix = 0; ix < objects.length; ix++)
      objects[ix] = null;
    freecells = objects.length;
    modCount++;
  }

  public  CompactHashSet();
  public  CompactHashSet(int size);
  public  CompactHashSet(Collection<E> c);

}