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despite the fact that Objective-C only gained 0.08% last month, it has entered the top 10 for the first time. This is quite an achievement, especially if one bears in mind that only 13 different programming languages had a top 10 score since the start of the TIOBE index in June 2001. The main (and probably only) reason for Objective-C's popularity is that it is the only language in which you can write applications for the iPhone or iPad. From a programming language point of view, Objective-C (born in 1986) offers no new interesting features.
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.
The index can be used to check whether your programming skills are still up to date or to make a strategic decision about what programming language should be adopted when starting to build a new software system. The definition of the TIOBE index can be found here.
| Position May 2010 | Position May 2009 | Delta in Position | Programming Language | Ratings May 2010 | Delta May 2009 | Status |
|---|---|---|---|---|---|---|
| 1 | 2 |  | C | 18.186% | +2.06% | A |
| 2 | 1 |  | Java | 17.957% | -1.58% | A |
| 3 | 3 |  | C++ | 10.378% | -0.69% | A |
| 4 | 4 | | PHP | 9.073% | -0.85% | A |
| 5 | 5 | | (Visual) Basic | 5.656% | -2.97% | A |
| 6 | 7 | | C# | 4.779% | +0.51% | A |
| 7 | 6 | | Python | 4.097% | -1.45% | A |
| 8 | 9 | | Perl | 3.286% | -0.24% | A |
| 9 | 11 | | Delphi | 2.566% | +0.24% | A |
| 10 | 39 | | Objective-C | 2.363% | +2.23% | A |
| 11 | 10 | | Ruby | 2.094% | -0.60% | A |
| 12 | 8 | | JavaScript | 2.084% | -1.46% | A |
| 13 | 12 | | PL/SQL | 0.859% | -0.24% | A |
| 14 | 13 | | SAS | 0.732% | -0.07% | A |
| 15 | 14 | | Pascal | 0.728% | -0.05% | A-- |
| 16 | 22 | | Lisp/Scheme/Clojure | 0.651% | +0.19% | B |
| 17 | 16 | | ABAP | 0.650% | -0.02% | B |
| 18 | - | | Go | 0.640% | +0.64% | A- |
| 19 | 18 | | MATLAB | 0.612% | +0.09% | B |
| 20 | 20 | | Lua | 0.493% | +0.01% | B |
The long term trends for the top 10 programming languages can be found in the line diagram below.
