October 18, 2013
I asked -- and the people responded! Fun fact No. 1: Apparently only 28 percent of Java developers write Java full time.
My survey may not be a truly scientific poll, but I was able to grab a good sampling of folks in the Java group on Google+ along with people in my Twitter, LinkedIn, and Facebook networks. Many of those folks in turn retweeted and reposted, so I actually know a only few of the people who responded. Throwing out duplicates and errors didn’t significantly affect the results.
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How do these responses track with your experiences? I'd love to know.
Are you still doing exclusively Java?
| Yes, only Java | 27 | 27% |
| No, mix of Java and other things | 72 | 73% |
What other JVM languages are you using?
| Groovy | 38 | 32% |
| Scala | 24 | 21% |
| JavaScript (Rhino/Nashorn) | 21 | 18% |
| JRuby | 9 | 8% |
| Jython | 7 | 6% |
| PHP (Quercus, etc.) | 6 | 5% |
| Clojure | 6 | 5% |
| Other | 5 | 4% |
| Erjang | 1 | 1% |
| OCaml | 0 | 0% |
What surprised me is that at 33 percent, Groovy was the top JVM language. I had expected Scala, which came in second at 20 percent, to rule the roost. Note: The numbers don't add up to 100 percent because developers could and did pick multiple languages.
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