localization - How can I see each permutation of `FormatStyle` for a localized `DateTimeFormatter` in Java? -

i cannot find documentation particular behavior of formatstyle set date portion , time portion of datetimeformatter when automatically localizing:

datetimeformatter.oflocalizeddatetime(formatstyle datestyle, formatstyle timestyle) 

is there way know possible variations of strings generated particular locale?

if want know results of generated strings (the final result of format method), your answer covers well. i'd add external loop through locales, because different locales can have different format styles.

if want know patterns, though, can use datetimeformatterbuilder.getlocalizeddatetimepattern method within same nested loops. used values() method instead of enumset (not sure if makes difference):

for (locale locale : locale.getavailablelocales()) {     system.out.println("--|for locale " + locale + "|-------");     (formatstyle styledate : formatstyle.values()) {         (formatstyle styletime : formatstyle.values()) {             string pattern = datetimeformatterbuilder.getlocalizeddatetimepattern(styledate, styletime, isochronology.instance, locale);             int padspacesoutto = 17;             string styles = styledate + " | " + styletime;             string styleslabel = string.format("%1$-" + padspacesoutto + "s", styles);             system.out.println(styleslabel + pattern);         }     } } 

the output (depending on available locales in jvm) this:

--|for locale ar_ae|------- full | full      dd mmmm, yyyy z hh:mm:ss full | long      dd mmmm, yyyy z hh:mm:ss full | medium    dd mmmm, yyyy hh:mm:ss full | short     dd mmmm, yyyy hh:mm long | full      dd mmmm, yyyy z hh:mm:ss long | long      dd mmmm, yyyy z hh:mm:ss long | medium    dd mmmm, yyyy hh:mm:ss long | short     dd mmmm, yyyy hh:mm medium | full    dd/mm/yyyy z hh:mm:ss medium | long    dd/mm/yyyy z hh:mm:ss medium | medium  dd/mm/yyyy hh:mm:ss medium | short   dd/mm/yyyy hh:mm short | full     dd/mm/yy z hh:mm:ss short | long     dd/mm/yy z hh:mm:ss short | medium   dd/mm/yy hh:mm:ss short | short    dd/mm/yy hh:mm --|for locale ar_jo|------- full | full      dd mmmm, yyyy z hh:mm:ss full | long      dd mmmm, yyyy z hh:mm:ss full | medium    dd mmmm, yyyy hh:mm:ss ... lots of output