Java 18有什么新特性

Java 18 reached general availability on 22 March 2022, download Java 18 here.

Java 18 has 9 JEP items.

• 1. JEP 400: UTF-8 by Default
• 2. JEP 408: Simple Web Server
• 3. JEP 413: Code Snippets in Java API Documentation
• 4. JEP 416: Reimplement Core Reflection with Method Handles
• 5. JEP 417: Vector API (Third Incubator)
• 6. JEP 418: Internet-Address Resolution SPI
• 7. JEP 419: Foreign Function & Memory API (Second Incubator)
• 8. JEP 420: Pattern Matching for switch (Second Preview)
  • 8.1. Dominance checking of the same type.
  • 8.2 Exhaustiveness of switch expressions and statements
• 9. JEP 421: Deprecate Finalization for Removal
• Download Source Code
• References

Java 18 developer features.
No new developer features, mainly preview and incubator, Pattern Matching for switch (second preview), Vector API (Third Incubator) and Foreign Function & Memory API (Second Incubator).