Which languages are mostly use in big industries or an open source program..?

Answer 1

i think Java

Answer 2

Proprietary software mostly written in Java and C.

Answer 3

markup language is used mostly in the front end.

As for the back end, mostly JAVA and C#. if you open up any webpage, if the url ends with .aspx (or .asp) most likely they use C#, if not VB. if their url ends with ,php its mostly likely JAVA

Answer 4

c++,c, java