I never heard of this before, but it does support getting country names:
Locale.getISOCountries(Locale.IsoCountryCode.PART1_ALPHA2)
.forEach(code -> System.out.printf("%s: %s%n",
code, new Locale("de", code)
.getDisplayCountry(Locale.GERMAN)));
It's the last Locale that determines the value you get, the "de" doesn't
really matter. Replacing Locale.GERMAN with Locale.FRENCH,
Locale.SPANISH or any other Locale gives different display names.
There is a LocaleNameProvider class that is potentially supported
through the ServiceLoader mechanism and can provide the name without the
need to create a Locale, but by default there are no implementations.
On 01/03/2026 16:10, Peter Burka wrote:
I think this is available in the JDK since 9:
https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Locale.IsoCountryCode.html#PART1_ALPHA3
On Sun, Mar 1, 2026, 8:04 AM Elric V <[email protected]> wrote:
On 28/02/2026 12:11, Gary Gregory wrote:
I think this is out of scope. A couple of PRs have been discussed and
closed. See GitHub. I'll resolve the ticket.
While it may be out of scope for Commons Lang, maybe there's another
place for such reference data somewhere? Probably not worth creating a
Commons project for just country codes, but maybe there are other
similar things?
- Elric
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