[leftover] Using _ as a variable

Vicente Romero vicente.romero at oracle.com
Fri Apr 14 19:09:50 UTC 2017


Hi Remi,

Thanks for the report. I have updated the error message,

Merci,
Vicente

On 04/14/2017 02:38 PM, Brian Goetz wrote:
> Great catch, thanks!
>
> On 4/14/2017 2:37 PM, Remi Forax wrote:
>> If someone try to use '_' as a variable, javac reports the following 
>> error,
>> which is not very readable.
>>
>> javac -source 10 LambdaLeftovers.java
>> LambdaLeftovers.java:10: error: as of release 10, '_' may only be 
>> used as an identifier of:
>>        System.out.println(_);
>>                           ^
>>    unused lambda, method, or catch formal parameter.
>> 1 error
>>
>> what about
>>    as of release 10, '_' can only be used as an unused formal parameter.
>>
>> cheers,
>> Rémi
>>
>



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