list literal gotcha and suggestion

[Paul Benedict]

The obvious implication here is the need for a type-cast:

System.out.println((List<>){{1, "One"}, {2, "Two"}});
or
System.out.println((Set<>){{1, "One"}, {2, "Two"}});
or
System.out.println((Map<>){{1, "One"}, {2, "Two"}});

This fits naturally with current Java expectations to resolve ambiguity.

Paul

On Tue, Oct 6, 2009 at 12:38 PM, Neal Gafter <neal at gafter.com> wrote:
> On Tue, Oct 6, 2009 at 9:45 AM, Reinier Zwitserloot
> <reinier at zwitserloot.com> wrote:
>>
>> Nobody has yet answered my original question:
>>
>> What does:
>>
>> System.out.println({{1, "One"}, {2, "Two"}});
>>
>> print? Looking at visual basic for syntax advice is not a good idea.
>
> I suggest that it be a compile-time error because the initializer isn't
> converted to some appropriate collection type in the source.
>