Java 21 New Features Simplified

Java is evolving at a rapid pace.
New features are getting added every six months.
The latest release from Java is version 21.
Java 21 introduced 15 changes of which 9 would be used by Java developers in their day-to-day programming.
The rest all are internal changes or specific to certain use cases.
This book explains in detail and in simple language, all the essential features that Java developers should know.

Below are the five essential preview features explained:

1.String templates
2.Unnamed patterns and variables
3.Unnamed classes and instance main methods
4.Scoped values
5.Structured Concurrency

Below are the four essential finalized features explained:

1.Sequenced Collections
2.Record patterns
3.Pattern matching for switch
4.Virtual threads

Here are the non-functional and specific use case features which are explained in short:

1.Generational ZGC
2.Foreign Function and memory API
3.Vector API
4.Deprecate the Windows 32-bit x86 port for removal
5.Prepare to disallow the dynamic loading of agents
6.Key encapsulation mechanism API

After going through the book , Java developers will gain strong understanding of the features introduced in Java 21.