OOP: [java-se-21-developer-object-oriented-programming](https://app.pluralsight.com/ilx/video-courses/java-se-21-developer-1z0-830-object-oriented-programming/course-overview) Streams and Lambda Expressions: [java-se-21-streams-lambda-expressions](https://app.pluralsight.com/ilx/video-courses/java-se-21-developer-1z0-830-streams-lambda-expressions/course-overview)
OOP: java-se-21-developer-object-oriented-programming
Streams and Lambda Expressions: java-se-21-streams-lambda-expressions