Cons an Iterable [closed]

It's difficult开发者_运维问答 to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 11 years ago.

I cannot find a method cons. Such a method would add a single item to an Iterable. Instead, do I have to use

Iterables.concat(list, Collections.singletonList(item))

? The following would be quite nice.

Iterables.cons(list, item)

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So, write a method cons(Iterable<T>, T) that makes the slightly-more complicated call to concat.