Is it possible to sync multiple programming languages?

Answer 1

Please refer to this thread. I suppose it is what your question means?
http://stackoverflow.com/questions/1886086/writing-a-program-in-2-languages

Answer 2

if you want to use different languages in same context then it will become a complicated application. so in order to use multiple languages, you need to make it modular. for instance most of web applications have frontend and backend- server sides. and javascript is used in frontent however a different language (java, pytho or .net-csharp ) can be used in backend.