Java Is #1 (18.387%), C (17.080%) second, Objective-C (9.803%) third. C++ and C# are at the ranks four and five.
It seems like all C-based languages are doing well.
NEW workshop: Building HTML 5 Applications With Angular 2
Full week in December 2016: from Java EE 7 Bootstrap, Effective, Architectures over Testing to Microservices
On demand workshops: Java EE 7: Bootstrap, Effective, Testing and Microservices available for streaming.