I have recently completed to develop a collection of video clips that explain how to use the control statements in Scala. These video clips were developed as part of the Scala Fundamentals course, available for free personal and academic usage at www.abelski.com.

Stable Values in Java (JEP 502): Deferred Immutability with JVM Trust
Explore Stable Values – a new Java 25 upcoming feature (JEP 502) enabling lazy initialization with immutable performance and JVM-level optimizations.