Use foreach to iterate using an Iterator

When the foreach syntax (for(:)) has been introduced in 1.5, a recurring question was why foreach is not able to iterate using an iterator.

I think i have a trick to do that using the syntax of the closure :

 Iterator<String> scanner=new Scanner(System.in);
 for(String word:() { scanner })
   System.out.println(word);

Why this code works. The foreach statement needs an array or an object that implements java.lang.Iterable. Iterable is an interface that has a single method iterator that returns an iterator thus the closure convertion is applicable.

Rémi