Skip to content
Advertisement

How can IntelliJ show type hints for automatically inferred local variables in Java 10?

IntelliJ shows type hints for local variables in Kotlin as shown here:

Type hints in Kotlin

This makes it easy to see the type of variables even if their types are inferred. Java 10 introduces type inference for Java with the var keyword. However, IntelliJ does not show any type hints by default:

enter image description here

After searching the internet for a bit, I was unable to find any information on how to enable type hints for local variables for Java. Is this even possible currently?

I use IntelliJ Community Edition 2019.1 on Windows 10.

Advertisement

Answer

Turn on option at:

Preferences > Editor > Inlay Hints > Types > Java > Implicit types.

enter image description here


You might also consider turn on all the options at:

Preferences > Editor > Inlay Hints > Parameter names > Java.

Advertisement