Convert Java files to Kotlin
I know a lot of you did Android applications much before this frenzy with Google adopting Kotlin programming language as their new favorite son. This is not that big of a problem for the existent Java files, because, using the right tools, you can convert them to Kotlin in double time.
As we showed you in the last tutorial, you must Get ready for Android development and Kotlin, if you want to automate this process of converting Java files to Kotlin. Installing Android Studio on your Mac, Linux or PC will speed up the job for you, with only few clicks you are ready to go full Kotlin from now on.
If you followed the steps above in the right order, it should be done by now. You just need to reconfigure Kotlin and Gradle files, when the two yellow pop-ups will show. Just select “All modules” and hit OK, and “Sync now” for Gradle files and you’re set to go.