Functional Programming in Java - 14. Optional & Stream (Navigator)

You will learn how Optional helps to write clean & unit-testable code especially when you need to navigate and locate a spot through many of nullable/empty associated objects. Featuring Stream of Collection, your search and value retrieval becomes even more powerful surprisingly and super easy to read and maintain it with Functional programming. This video contains a practical example and exercise in addition, you may want to try in your own IDE and apply to your work later.

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