[SOLVED] Locale with comma as a decimal separator

I have a Raspi with Java8 (zulu-embedded-8) and cannot find the setting how to get a “comma” as a floating separator instead the “point”.

Is there a setting within JAVA?

Especially I would like to have commas fpr the values in sitemap.


Did you set your locale in openHAB?
Did you set your locale in raspi-config?

Thank you very much. Raspi-config didn’t work for me.
However, this way worked:

Show which locale is active:
env | grep LANG
Write new locale:
export LANG=de_DE.UTF-8
dpkg-reconfigure locales

then reboot and enjoy!