Benefiting from Java 9 Improvements
summary
Java 9 deprecates finalize and adds private methods in interfaces to factor shared code, makes try-with-resources accept outside (effectively final) variables so injected resources work, and bans underscore as an identifier. Streams gain takeWhile and dropWhile and an overloaded iterate(seed,predicate,fn) for logical termination. Optional adds ifPresentOrElse, or and optional.stream(), Collectors get filtering/flatMapping helpers, and compact immutable factories appear as List.of/Set.of/Map.of.
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chapters (12)
- 0:00Introduction
- 1:32Interfaces
- 5:06Finalize
- 6:47Lifes Lesson
- 7:32Close Method
- 9:35External Resource
- 11:55Zombie Object
- 12:26Underscore
- 14:32Using Underscore
- 25:01Instream Methods
- 32:19Optional
- 38:51Our Method
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