public  void clear() 
{
            HashMap.this.clear();
}

 public boolean contains(Object o) 
{
            if (!(o instanceof Map.Entry))
                return false;
            Map.Entry< K,V > e = (Map.Entry< K,V >) o;
            Entry< K,V > candidate = getEntry(e.getKey());
            return candidate != null && candidate.equals(e);
}

 public Iterator iterator() 
{
            return newEntryIterator();
}

 public boolean remove(Object o) 
{
            return removeMapping(o) != null;
}

 public int size() 
{
            return size;
}