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What's New in JDK 14 - New Features and Enhancements; Removed Features and Options; Deprecated Features and Options; Other Notes; Differences Between Oracle JDK and Oracle's OpenJDK
The Java Platform, Standard Edition 14 Development Kit (JDK 14) is a feature release of the Java SE platform. It contains new features and enhancements in many functional areas.
Jan 16, 2024 · In this tutorial, we’ll look at a summary of new and deprecated features of version 14 of the language. We also have more detailed articles on Java 14 that offer an in-depth view of the new features.
- New Language Features in Java 14. Enhancements for switch expressions become standard, whilst Text blocks, Records and Pattern matching for instanceof are still in preview.
- Updates for Tools and APIs in Java 14. Another interesting feature in JDK 14 is the introduction of a new packaging tool, among some updates for JDK APIs.
- JVM Performance Improvements in JDK 14. JVM performance is continued to be improved in this release. The Garbage First (G1) collector performance is improved by implementing the NUMA-aware memory allocation.
- What’s Deprecated in JDK 14. JDK 14 deprecates the two garbage collection algorithms, namely Parallel Scavenge and Serial Old because they are very little used but requires a significant amount of maintenance effort.
- Java 14 Records. Java is an object-oriented language; you create classes to hold data and use encapsulation to control how that data is accessed and modified.
- Pattern Matching instanceof. In some situations, you do not know the exact type of an object. To handle this, Java has the instanceof operator that can be used to test against different types.
- Helpful NullPointerException. Anyone who’s written more than a few lines of Java code will have experienced a NullPointerException at some point. Failing to initialise an object reference (or mistakenly explicitly setting it to null) and then trying to use the reference will cause this exception to be thrown.
- Java 14 New APIs. Now let’s turn our attention to the changes in the class libraries. java.io. PrintStream has two new methods, write(byte[] buf) and writeBytes(byte[] buf).
Mar 17, 2020 · JDK 14 is live! Download it from the Java SE Downloads page. See the JDK 14 Release Notes for detailed information about this release. The following are some of the important additions and updates in Java SE 14 and JDK 14: Switch Expressions is now a permanent feature.
Feb 27, 2020 · Java 14 contains more new features than the previous two releases—most of them aimed at easing coding. Download a PDF of this article. Java 14 is scheduled for release on March 17. Version 14 includes more JEPs (JDK Enhancement Proposals) than Java 12 and 13 combined.
