bluform - 2012-01-20

hi everyone, I'm trying to install obexftp-frontend in linuxmint isadora (ubuntu like) I get this error message so far.
the launcher doesnt work. any idea what i should do? apparently it doesnt find the java command. thank you.

in terminal
# obexftp-frontend &
# /usr/bin/obexftp-frontend: line 2: java : commande introuvable

-- obexftp file
jar /usr/lib/obexftp-frontend/obexftp-frontend-core-0.6.6.jar