RFR - JDK-8203444 String::formatted (Preview)

Jim Laskey james.laskey at oracle.com
Tue May 21 15:56:11 UTC 2019

Good point. To make sure I fully understand what you are stating,

- The argument for having an instance method is reasonable to achieve "flowiness".
- However, only one version is necessary or desired, that is, "public String formatted(Object... args)".
- In cases where Locale needs to be overridden, then either use "String.format(Locale lc, String fmt, Object... args)" or globally set "Locale.setDefault(Locale lc)".


-- Jim

> On May 21, 2019, at 12:44 PM, Florian Weimer <fweimer at redhat.com> wrote:
> * Jim Laskey:
>> All discussion is valid. I agree the ambiguity is tricky, but can be
>> resolved by using explicit locale.
>> Example:
>> 	"%s".formatted(Locale.getDefault(), Locale.JAPAN);
>> This guarantees the "public String formatted(Locale l,
>> Object... args)" form is chosen with the second Locale as an argument.
> There is also the cognitive overhead.  I think the key question is
> whether this is so bad:
>  String.format(Locale.US, """
>  %s
>  """, Locale.JAPAN);
> Then perhaps we wouldn't need the formatted method which takes a Locale
> object.
> Thanks,
> Florian

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