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1. • 15 features

     • Based on Java 21, the latest version of the Java SE (Standard Edition) platform, JDK 21 ushers in 15 features, including a key encapsulation mechanism API, virtual threads, and previews of string templates and structured concurrency.
     www.infoworld.com/article/2338097/jdk-21-the-new-features-in-java-21.html

     JDK 21: The new features in Java 21 - InfoWorld

2. www.baeldung.com › java-lts-21-new-featuresNew Features in Java 21 - Baeldung

   www.baeldung.com › java-lts-21-new-features

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   Jul 5, 2024 · In this article, we discussed a few notable changes delivered in Java 21. We discussed record patterns, pattern matching for switches, string templates, sequenced collections, virtual threads, string templates, and the new KEM API. Other enhancements and improvements are spread across JDK 21 packages and classes.

3. howtodoinjava.com › java › java-21-new-featuresJava 21 Features (LTS): Practical Examples and Insights

   howtodoinjava.com › java › java-21-new-features

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   Jan 21, 2024 · Learn the new features in Java 21 LTS, including Virtual Threads, Unnamed classes, Sequenced Collections, Scoped Values, and Record Patterns.

4. Videos

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     Upgrading to Java 21? You'll want avoid these features.

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     Java 21 New Features | What's New In Java 21?

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5. www.geeksforgeeks.org › java-jdk-21-new-featuresJava JDK 21: New Features of Java 21 - GeeksforGeeks

   www.geeksforgeeks.org › java-jdk-21-new-features

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   Oct 31, 2023 · Here the Java community is adding new features based on feedback to make modern coding easier which will also help the developers to build more effective Java applications. It will improve the performance of Java platforms to make Java applications run faster, use less memory, or be more responsive.

6. dev.to › getpieces › breaking-down-java-21-featuresBreaking Down Java 21 Features: A Developer's Guide

   dev.to › getpieces › breaking-down-java-21-features

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   Dec 29, 2023 · Java 21 introduces a host of exciting features and enhancements, promising to reshape the way developers approach their craft. In this blog, we will explore some of the key updates to keep an eye on and effective ways to incorporate them into your daily development practices.

7. www.codeburps.com › post › whats-new-in-java-21What’s new in Java 21: A Tour of its Most Exciting Features

   www.codeburps.com › post › whats-new-in-java-21

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   The Java platform now follows a six-month release cycle, and Java 21 has succeeded Java 17 as the most recent long-term support release (LTS). JDK 21 features a total of 15 JEPs (JDK Enhancement Proposals). You can view the complete list on the official Java site here.

8. symflower.com › blog › 2023JDK 21: What is new in Java 21? - Symflower

   symflower.com › blog › 2023

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   Sep 13, 2023 · The new version Java 21, set to be released on 19 September 2023, is an LTS release that brings 15 finalized features including core language extensions, new features for developing multi-threaded code, and updates for the Z Garbage Collector and continued work on providing a JNI alternative.

9. People also ask

   What are the new developer features in Java 21?

   • This article discusses the new developer features in Java 21 including Virtual Threads, Unnamed classes, Sequenced Collections and Record Patterns. Java 21 is finally released on 19-Sep-2023 as the next long-term support (LTS) release of Oracle’s standard Java implementation.

   Java 21 Features (LTS): Practical Examples and Insights - HowToDoInJava

   howtodoinjava.com/java/java-21-new-features/

   See all results for this question

   Is Java 21 a long-term support release?

   • The Java platform now follows a six-month release cycle, and Java 21 has succeeded Java 17 as the most recent long-term support release (LTS). JDK 21 features a total of 15 JEPs (JDK Enhancement Proposals). You can view the complete list on the official Java site here.

   What’s new in Java 21: A Tour of its Most Exciting Features

   www.codeburps.com/post/whats-new-in-java-21

   See all results for this question

   What's new in Java 21?

   • Now, with Java 21, they are out of the preview and include some refinements. This JEP extends the existing pattern-matching feature to destructure the record class instances, which enables writing sophisticated data queries. Moreover, this JEP adds support for nested patterns for more composable data queries.

   New Features in Java 21 - Baeldung

   www.baeldung.com/java-lts-21-new-features

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   How many JDK Enhancement Proposals are there in Java 21?

   • JDK 21 features a total of 15 JEPs (JDK Enhancement Proposals). You can view the complete list on the official Java site here. In this document, I'll highlight several Java 21 JEPs that I find particularly noteworthy. Java 21 introduces a new Java Collection Hierarchy, enhancing operations on ordered datasets.

   What’s new in Java 21: A Tour of its Most Exciting Features

   www.codeburps.com/post/whats-new-in-java-21

   See all results for this question

   What's new in JDK 21?

   • In this article, we discussed a few notable changes delivered in Java 21. We discussed record patterns, pattern matching for switches, string templates, sequenced collections, virtual threads, string templates, and the new KEM API. Other enhancements and improvements are spread across JDK 21 packages and classes.

   New Features in Java 21 - Baeldung

   www.baeldung.com/java-lts-21-new-features

   See all results for this question

   What is new in Java 15?

   • Java 15, includes several new features and enhancements. Some notable new methods in Java 15 include: Hidden Classes This feature allows classes to be defined as hidden, which means they are not visible to code outside of the package in which they are defined. This can be used to improve the security and maintainability of code.

   Java JDK 21: New Features of Java 21 - GeeksforGeeks

   www.geeksforgeeks.org/java-jdk-21-new-features-of-java-21/

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10. www.infoworld.com › article › 2338097JDK 21: The new features in Java 21 - InfoWorld

    www.infoworld.com › article › 2338097

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    Sep 19, 2023 · Java 21 has arrived in a production release with 15 features including virtual threads, a generational Z garbage collector, and a key encapsulation mechanism API.