Functional Java: how do I construct an empty list?

Question

I wish to construct the empty list of type List<String>. The best I can come up with that satisfies the type-checker is:

(List<String>) (Object) List.nil()

which is terribly ugly. Is there something better?

Indeed, why don't I use Haskell? Alas, historical constraints. :-( — jameshfisher, May 23 '13 at 12:26

Shlomi · Answer 1 · 2013-05-28T10:25:10.117

3

Here is another option:

List<String> l = List.<String>nil();

edited May 28 '13 at 10:25

answered May 23 '13 at 18:19

Shlomi

score 2 · Answer 2 · answered May 23 '13 at 12:13

2

This should do it:

List<String> myList = list();

answered May 23 '13 at 12:13

JonasVautherin

Aha, I see, I'm not allowed to construct it in an anonymous expression context. Thanks! – jameshfisher May 23 '13 at 12:24

2 Answers2