timezone - Java: getTimeZone without returning a default value -

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i have following instruction:

timezone zone = timezone.gettimezone("asia/toyo");

obviously, should return null, return default timezone, not desired behaviour case. java doc:

returns specified timezone, or gmt zone if given id cannot understood.

is there way corresponding timezone , null value if string not indicate valid timezone?

i don't find solution timezones , iterate on them.

instead of iterating use:

boolean exists = arrays.aslist(timezone.getavailableids()).contains("asia/toyo");

or:

boolean exists = arrays.stream(timezone.getavailableids()).anymatch("asia/toyo"::equals);

if need often, putting available ids in hashset more efficient.


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