Q:

Can't get armenian months names

I want to print armenian month names but it doesn't work.  This is my code:
Locale loc = new Locale("hy");
Calendar cal = Calendar.getInstance(loc);
System.out.println(cal.getDisplayName(Calendar. MONTH, Calendar. LONG_STANDALONE, loc));

I have tried many others abbreviation like "hye" or "arm", but nothing works.  Other language such as russian "ru" work fine.  I have no idee what i'm doing wrong

A:

There was an enhancement in JDK8  wherein the CLDR's XML-based locale data has been incorporated into the JDK 8 release, however it is disabled by default. 
So, if you run your code with the argument -Djava.locale.providers=CLDR or add the same through the java.locale.providers System.property in your code, hy: Armenian hy_AM: Armenian will be supported. 
With JDK 9 enhancements  , CLDR locale data is enabled by default.  So, the code will run without adding any system property. 
Hope this helps.