java - Portable way to guarantee that the year field of a DateFormat is only two digits -

currently, i'm having

private threadlocal<dateformat> shortdateformat = new threadlocal<dateformat>() {     @override protected dateformat initialvalue() {         final dateformat format = dateformat.getdateinstance(dateformat.short);         return format;     } }; 

using android 4.1, provides me date in format (in localization. may different other countries)

19/07/2013

however, have shorter version 19/07/13

i not want hard code as

dd/mm/yy

as above way not portable across different countries. countries, month come before date.

is there portable way achieve so?

p/s not month/date order. there might other problem well. instance, china using 19-07-13 or 19-07-2013. there might more edge cases other countries, don't know.

simpledateformat dateformat= (simpledateformat) dateformat.getdateinstance(); dateformat.applypattern(dateformat.topattern().replaceall("y{4}", "yy")); 

explanation:

applypattern(string pattern) applies given pattern string date format.

dateformat.topattern() gets current pattern

dateformat.topattern().replaceall(string regex, string replacement) returns current pattern, regex replaced replacement.

"y{4}" looks through date format pattern series of 4 y's, ,
"yy" says if see 4 y's, replace them 2 instead.

hope helped. luck.

edit:
mh pointed out, since android, more appropriate use:

simpledateformat dateformat = (simpledateformat)                       android.text.format.dateformat.getdateformat(getapplicationcontext()); 

this should work fine, since above method call returns dateformat of java.text.dateformat, not of android.text.format.dateformat.