The top 5 languages learned: Java, followed by C, Python, C++, and JavaScript. JetBrains also asked which massive open online course platforms are the most popular.

Tiobe analysts believe that within three to four years' time, Python will "probably replace C and Java" to become the most popular programming language in the world.

Python has surpassed Java as the top language used to introduce U.S. students to programming and computer science, according to a recent survey posted by the Association for Computing Machinery (ACM).