Null Safety


Nullable types and non-null types
Null을 안전하게 처리하는 방법




> [Kotlin - Null을 안전하게 처리하는 방법 (Null safety, 널 안정성)](https://codechacha.com/ko/kotlin-null-safety/)

> [Null safety | Kotlin](https://kotlinlang.org/docs/null-safety.html)

> [Retrofitting null-safety onto Java at Meta](https://engineering.fb.com/2022/11/22/developer-tools/meta-java-nullsafe)





