Updated March 30, 2023
Introduction to Java 10 Features
The following article provides an outline for Java 10 Features. An object-oriented and high-level programming language with class-based differentiation so that less dependencies for applications and system-based features happen within the integration is called Java programming language. We can run Java code in any operating system so that it runs for embedded applications with its complexity. This is mostly used in back-end programming languages where applications are developed with android or developers working with data. Numerical computing and games is another field where Java is used extensively so that developers can work within their comfort zone, either developing a small application or a bigger one depending on the requirement.
Various Java 10 Features
Given below are the various Java 10 Features:
- Type inferences can be done in local variables, which can be used only in certain scenarios. This was not present in other Java versions, and hence developers are excited to use local variables type inferences. If the local is declared in a for loop and if there are indexes in the for loop, we can use local variables type inferences. Also, a local variable is limited only to initializers so that only if the variable is initialized inside the loop we can do type inferences. Reserved keyword ‘var’ should be added for this feature so that compilation will pick up the local variable to infer the types.
- In Java 10 version, a new version number is updated in Java so that developers can know which version and which update they are using. It is in this form, $FEATURE.$INTERIM.$UPDATE.$PATCH. $FEATURE depends on the feature release versions, and $INTERIM depends on the non-feature releases that happen within a 6-month duration. When there is any update on the security or bug in the language, it is updated on $UPDATE. When there is any critical issue and updates must be done on an emergency basis, $PATCH is updated with the version number. All these counter versions are updated with the help of an API in the language so that developers need not worry about the same.
- We have a different Java compiler called Graal, which was first introduced in Java 9. Polyglot language interpretation is supported, and Ahead of Time compilation (AOT) is introduced in Graal so that users can compile and know the result beforehand. In addition, live code optimization helps developers to save time while fixing bugs and rerunning the program again. Graal is completely written in Java, whereas previous Java compilers were written in C++.
- We have a G1 garbage collector in Java 9, which made garbage collection easy, but there was latency when there were concurrent threads for garbage. This made the developers to wait for a long time to restart the application. Java 10 made the work easy by introducing parallel collection where the algorithm of the G1 collector is parallelized when it cannot recollect the memory outputs, which make garbage collection easy. Also, there is a common Garbage Collector Interface that helps in adding new features to GC without removing the existing one. For example, code isolation can be improved using this interface and helps in adding new features without changing the database.
- Unicode extensions are used in Java, and in version 10, additional extensions have been introduced. ‘cu’,’fw’,’rg’ and some of the extensions that depict currency type, the first day of the week and region override. APIs are changed to accommodate these extensions so that Java can compile without creating any issues while extensions are used. BCP 47 language tags are also supported in Java 10.
- In order to improve performance, there is a callback for Java Thread when the Thread is in its safest state. This is a handshake method employed within the language configuration so that a global safe point is not required. This helps to manage all Java Threads simultaneously without any external influence to the points and VM in the system. Thus, we can stop individual threads whenever needed, and it is not necessary to stop all threads at once like other Java versions.
- The storage and memory requirement of the application became so high after the release of newer versions. It is not always easy to cater to the application’s needs if the system has low memory. Java 10 has a new option called memory architectures. A Hotspot VM can be used to alternate the application’s memory to any other storage devices as per the user’s needs. This helps users to check the application whenever they are outside or not near the system. The alternate devices should have semantic features like atomic operations and DRAM as per the requirement of the application.
- Few APIs were removed, and many were added in Java 10. For example, we can make changes to Lists, Maps and Sets while running the program while the result will not give us the changed output. Also, ElseThrow() is added for primitive programs and has more applications than get(), which helps to receive information in a faster way. More methods such as add, out, or is added to collectors to get output in the desired format.
- Java API helps users in various methods. We have an assistant API which informs users about the upgrade of indexes and nodes so that they will not miss the timeline. The key management is present in API, but it is limited to users so that unauthenticated logins will not happen to mess with the data. A keystore is provided, which can be locked with security. We also have ABAC (Attribute-Based Access Control) in Elasticsearch so that users with specific attributes can access the servers for their specific needs. Document-level security is present, making the read access enabled users to lock their documents stored in the cloud storage. Auditing can be done to mark the errors in the server so that these can be avoided in the later stage.
Conclusion
Java 10 has given way to more modern changes, which is adapted in newer versions. The faster release of Java made many features possible within the language so that other versions where able to explore more about the same. In addition, the long term support version helps developers to do programming in a faster manner with increased performance.
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