Word usage - differences between: dowolny / jakikolwiek / żadnych

what are the differences between ;
dowolny / jakikolwiek / żadnych

they all mean any, but how should i use them.

thanks

chaza

No. "Żadnych" means none.

Dowolny is more formal than jakikolwiek.

:Press any key to continue" as a message on the computer would be translated as "Naciśnij dowolny klawisz aby kontynuować". To another person I would say "Naciśnij jakiś klawisz" ("jakiś" is shorter and consequently more popular, but also less precise). If they then asked "Jaki?", I would answer "Jakikolwiek".

"Żaden" ("żadnych" is a plural genitive) means "none".