Does it matter which programming language I use?

Yes, but don’t expect miracles. Some people seem to believe that a programming language can or at least should solve most of their problems with system building. They are condemned to search forever for the perfect programming language and become repeatedly disappointed. Others dismiss programming languages as unimportant “implementation details” and put their money into development processes and design methods. They are condemned to program in COBOL, C, and proprietary design languages forever. A good language – such as C++ – can do a lot for a designer and a programmer, as long as its strengths and limitations are clearly understood and respected.