When was java9 launched?

Answer 1

Is there anything barricading you from googling the question?

https://www.google.com/search?q=java+9+release+date

Answer 2

Realease date: 21st September 2017
"https://www.pearsonfrank.com/blog/java-9-new-features-release-date/"

Answer 3

When is the sololearn launched, tell me the date

Answer 4

Sololearn release date: October 25, 2016 (I checked Google Play for the answer)