I am a mid career Perl developer and have been doing for 5+ years. Not that my job is in jeropardy or something, but I like to learn some other language. Since I am willing to learn at depth, I like to devote my time and effort to exclusively one 'new' thing at a time.

My choices are C++ and Java and to some extent C#. My intention are to have a new career for me, may be based upon one of the 'newly' learned language.

Which way I should go?.

Thank you for your words.