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Subject: Re: How convert Iterator into Enumeration
Date: Wed, 28 Nov 2012 13:10:21 -0800
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On 11/28/2012 10:28 AM, Eric Sosman wrote:

>      Aha!  Thanks to Jim Janney, I've just learned about the
> Collections#enumeration(Collection) method.  It's perhaps a
> smidgen less general than enumeration(Iterator) would be, but
> only a smidgen.
>
>      (And I still don't see an iterator(Enumeration) method
> anywhere.  Maybe Santa will bring one ...)


Yes, that was a useful post.  I also note some other interesting methods:

static <T> Enumeration<T> 	emptyEnumeration()
            Returns an enumeration that has no elements.

static <T> Iterator<T> 	emptyIterator()
            Returns an iterator that has no elements.

static <T> ListIterator<T> 	emptyListIterator()
            Returns a list iterator that has no elements.

There's methods to return empty collections too (List, Map, Set) as well 
as singletons for List, Map and Set, but I think more folks know about 
those.  The above methods I listed are new with Java 1.7.