The F# programming language supports many of the well known object oriented possibilities we know in C#. The following video clips show some of these capabilities. You can find the source code as part of my F# Fundamentals course. Its community version is available for free personal use 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.