Java Project Amber - Not Just a Rare Fossil
summary
Project Amber’s changes are demonstrated live in IntelliJ against Java 18, with runnable GitHub examples. It shows local variable type inference (var) caveats, arrow and yield switch expressions (JEP 325/354/361) that print quarter and parity results, text blocks (final in Java 15) preserving indentation, pattern matching for instanceof producing flow-scoped bindings, immutable records with compact constructors that validate and can throw on creation, sealed classes controlling subtypes, and record/switch pattern features currently in preview or on hold.
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chapters (13)
- 0:00Introduction to Project Amber
- 1:13Meaning behind Project Amber
- 3:41Local variable type inference
- 6:33Switch expressions in Java
- 10:04Text blocks in Java
- 18:43Pattern matching for instance of
- 26:01Java records explained
- 37:14Sealed classes and hierarchies
- 44:58Record patterns and deconstruction
- 48:48Pattern matching in switch
- 54:06Lambda leftovers and updates
- 58:18Java compiler intrinsics
- 1:00:22Future features and summary
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