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.
|Yes, only Java||27||27%|
|No, mix of Java and other things||72||73%|
|PHP (Quercus, etc.)||6||5%|
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.