Java 13 is a newly launched Java version. There are many speculations on the Internet about its features. Mark Reinhold, the current chief architect for the Java platform, stated that the new Java release circle is six months. Many Java 13 enthusiasts are asking the question: “What’s new in Java 13? It was released on September 17, 2019.”
Today’s discussion will focus on Java 13’s new features. We will also discuss the options and features that were reduced or eliminated.
Introduction to Java 13: New Features
Java Development Kit 13 (or JDK 13) is the latest version of standard Java. It is available as the production release. Java 13’s release date was September 17, 2019. This release included a number of features that were not in the original proposals. Let’s take a look at the most notable features in Java Development Kit (JDK 13).
Text Blocks can be added
The main feature of Java 13’s new features is the addition text blocks to the preview phase. A text block is a multiline string literal that can be used to avoid unnecessary escape sequences. It allows for automatic formatting of strings with greater control and predictability than the format for developers. The main purpose of adding text blocks to Java programs is to make it easier to write.
Programming Java programs can be made easier if you use the simpler expressions of the strings over a number lines of source code. This objective has one major concern: Avoid escape sequences in general cases. Text blocks are also great for improving the readability of strings. Text blocks are also used to support the transition between string literals in Java 13. The revised provision states that any new construct can express exactly the same set strings as a string literal, and also provide the same escape sequence.
Text blocks are a new feature in Java 13 that is both surprising and interesting. Raw string literals were actually the original idea for Java 13.
Switch expressions
The second preview of Switch expressions is another notable addition to Java 13. This is one of the most prominent features in Java 12. Java 13 has seen a slight change. Java 13 has undergone a slight change. Consequently, the word ‘break’ is now replaced by ‘yield, which is a value-statement. This value statement’s main purpose is to get one from ‘Switch’.
This improvement in Java 13 focuses on the extension of Switch’ to allow it to be used as a statement, or expression. The new ‘case …->” labels can be used without any fall-through, or the traditional ‘case ….’ labels with a fall through. The new Java 13 statement to get a value from the “Switch” expression is another notable addition.
API Replacement for Legacy Socket API
The replacement of the legacy socket API is another important addition to the new Java 13 features. This addition is a great replacement for basic implementations used by java.net.ServerSocket and java.net.Socket APIs. This implementation is simple and sophisticated, with easy maintenance and debugging. This implementation is suitable for adapting to working in fibers, which can be used-mode threads.
Project Loom is currently discussing the idea of fibers. The legacy APIs have been around since JDK 1.0. They are a mix Java code and Legacy C. This creates problems in maintenance and debugging. The Legacy implementation may also have issues like the native state structure that is used to support synchronous closing. You may experience reliability and porting issues, as well as the need for concurrency solutions.
Extension of the AppCDS
Loaded applications are required to extend AppCDS (application-class-data sharing) in order to enable vigorous archiving classes at application execution’s end. The default base-layer CDS achieve won’t be found in any library classes. This improvement proposal has been approved and is now in the target stage to improve the usability of application-class-data sharing. The targeted stage proposal is ideal for reducing the time required for users to run trial runs when creating a class list for each application.
There are many more features in Java 13. These are the most notable:
New String Constants For Canonical XML 1.1 URIs
Session Resumption without Server-Side State in the JSSE;
CRLs can be configured to read timeout
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