Below you will find pages that utilize the taxonomy term “Java 20”
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Java 20 Features
Java 20 was released on March 21, 2023. It is a short-term release supported for six months, following the September 20 release of JDK 19. JDK 21, due in September, will be a long-term support (LTS) release, backed by multiple years of support.
New features in Java 20:
- Record Patterns (Second Preview): This feature enhances the Java programming language with record patterns to deconstruct record values. Record patterns and type patterns can be nested to enable a powerful, declarative, and composable form of data navigation and processing.
- Pattern Matching for Switch Statements and Expressions (Fourth Preview): This feature extends pattern matching to express more sophisticated, composable data queries in switch statements and expressions.
- Foreign Function and Memory API (Second Preview): This API introduces an API by which Java programs can interoperate with code and data outside of the Java runtime.
- Scoped Values (Incubator): This feature introduces scoped values, which enable the sharing of immutable data within and across threads.
- Virtual Threads (Incubator): This feature provides a lightweight, non-blocking thread abstraction that can be used to improve the performance and scalability of concurrent applications.
- Vector API (Proposal): This API provides a high-performance, efficient way to operate on arrays of primitive data types.
- Unicode 15.0 Support: This release includes support for Unicode 15.0, which includes new characters and emoji.
- Improved Control of G1 Concurrent Refinement Threads: This release includes improvements to the G1 garbage collector, which can improve the performance of concurrent applications.
- Support for CLDR Version 42: This release includes support for CLDR Version 42, which provides locale data for over 150 languages.