This is a great article to describing which way the world is headed and not necessarily true.
my thoughts and notes on the scores above.
Java - expensive, memory intensive, security issues riddled by developers, scientific/government necessary evil
SQL - better know it for all things and know OLE-DB, native raw language connectivity
JavaScript - absolutely for the client side, w/HTML5/CSS3
Python - absolutely for science, fun, graphics, analysis and more...
Microsoft C# - yep, for most things you will need
C++ - yep, if you are needed power and speed
REF: