According TIOBE Programming index C is worlds most popular programming language followed by Java and C++. C has enjoyed a market of between fifteen to twenty percent for almost a decade. The main reason for C’s number one position is not C’s growth , but the decline of its competitor Java.
| Position Apr 2010 |
Position Apr 2009 |
Delta in Position | Programming Language | Ratings April 2010 | Delta April 2009 | Status |
| 1 | 2 |  |
C | 18.058% | +2.59% | A |
| 2 | 1 |  |
Java | 18.051% | -1.29 | A |
| 3 | 3 |  |
C++ | 9.707% | -1.03% | A |
| 4 | 4 | |
PHP | 9.662% | -.23% | A |
| 5 | 5 | |
Visual Basic | 6.392% | -2.70% | A |
| 6 | 7 | |
C# | 4.435% | +0.38% | A |
| 7 | 6 | |
Python | 4.205% | -1.88% | A |
| 8 | 9 | |
Perl | 3.553% | +0.09% | A |
| 9 | 11 | |
Delphi | 2.175% | +0.44% | A |
| 10 | 8 | |
JavaScript | 2.469% | -1.21% | A |
Long term trends
The long term trends for the top 10 programming languages can be found in the line diagram below.
The TIOBE Programming Community index gives an indication of the popularity of programming languages. The index is updated once a month. The ratings are based on the number of skilled engineers world-wide, courses and third party vendors. The popular search engines Google, MSN, Yahoo!, Wikipedia and YouTube are used to calculate the ratings. Observe that the TIOBE index is not about the best programming language or the language in which most lines of code have been written.
very intrusting article for software industry.
well when C /c++ if neck 2 neck with java i wonder how all ppl say java is most demand in software industry n C ppl have less jobs
i guess ajay boss service company which form bulk use java while C /c++ is used more by product based n Rnd company..
wat do u say ajay boss
?