Which JDK for Kotlin development?

Hello,

We can't tell for all the JDKs, it depends on the vendor, version, etc. But in general it's possible to use any JDK version.

I think AdoptOpenJDK is a specific vendor. Does Kotlin work the same with both JDK 8 and 11?

Also, IntelliJ does NOT come with an embedded JDK, right? Because I've had a few people claim that now.

Yes, Kotlin works with JDK 8 and 11. IDEA doesn't contain JDK, only custom JRE that is used to run itself.

Thank you very much!

On Windows 10 I've installed IntelliJ IDEA Community Edition and any Kotlin / JVM | IDEA project uses the Java JDK located at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2019.2\jbr. I don't find on my system any other JDK. Is it still true that IDEA doesn't contain JDK?

If I want to write only in Kotlin, is it not enough to install IDEA?

thanks and best

Hello,

IDE is provided either with JBR built-in and not, it depends on what you downloaded, if it has a JDK.

Hello, Liubov, and thanks for the immediate feedback.

Can you please solve the following doubts?

1. I've downloaded and installed IntelliJ IDEA Community Edition from https://www.jetbrains.com/idea/download/#section=windows and it seems to be enough to develop and run Kotlin project on Windows 10 without JDK installation, is it right?

2. If I use IDEA in which cases (operating systems, type of apps,...) do I have to donwload the JDK to write Kotlin program?

best

We are talking about 2 different JDKs here. IntelliJ IDEA contains a JDK to RUN ITSELF. When you create a Kotlin project, it should prompt you to provide a JDK to run your actual program. This is not embedded by default and has to be installed separately.

Check this video I made, it contains everything step by step:

https://www.youtube.com/watch?v=fwZyfudxnNo&ab_channel=CodinginFlow

At the moment we do not bundle any JDK for development and it's up to a user to install and configure JDK in IntelliJ IDEA when needed. Bundled JBR (JetBrains Runtime) used to run the IDE itself should not be used for development.

@flo, thank you, the 2019.2 IntelliJ doesn't prompt me for a JDK because in my installation it uses the JBR and it seems to work (at least for simple programs):

@serge, thank you now I've installed also a JDK from adoptopenjdk.