text: do u think programmer's must update their knowledge (new programming languages) other wise they will be troub do u think programmer's must update their knowledge (new programming languages) other wise they will be trouble. they dont have demand in the programming field yes definitely.. and i can clear this to you by giving you an example..  almost a decade ago, pascal was condidered to be a revolutionary language and people programming in java were considered to be the masters. now if any of them didn't learn any new language, you can yourself imagine where that guy would be.. :)