In Stack Overflow's 2021 developer survey, 34.5% of pro developers said they use Java and 29.8% said they use C#: https://insights.stackoverflow.com/survey/202

In Stack Overflow's 2021 developer survey, 34.5% of pro developers said they use Java and 29.8% said they use C#: https://insights.stackoverflow.com/survey/2021#most-popular-technologies-language-prof https://insights.stackoverflow.com/survey/2021#most-popular-... That doesn't factor in other JVM and .NET languages like Scala and F#, but it does give you some idea.