/**
* Save the state of this <tt>HashSet</tt> instance to a stream (that is, serialize this set).
*
* @serialData The capacity of the backing <tt>HashMap</tt> instance (int), and its load factor
* (float) are emitted, followed by the size of the set (the number of elements it contains)
* (int), followed by all of its elements (each an Object) in no particular order.
*/
private void writeObject(java.io.ObjectOutputStream s) throws java.io.IOException {
// Write out any hidden serialization magic
s.defaultWriteObject();
// Write out HashMap capacity and load factor
s.writeInt(map.capacity());
s.writeFloat(map.loadFactor());
// Write out size
s.writeInt(map.size());
// Write out all elements in the proper order.
for (Iterator i = map.keySet().iterator(); i.hasNext(); ) s.writeObject(i.next());
}
/**
* Returns an iterator over the elements in this set. The elements are returned in no particular
* order.
*
* @return an Iterator over the elements in this set.
* @see ConcurrentModificationException
*/
public Iterator iterator() {
return map.keySet().iterator();
}