Difference between Java 8 vs Java 9

Java is an Object Oriented Programming which was designed by James Gosling. It was developed and is maintained by Oracle Corporation (then Sun Corporation). It is a general-purpose programming language which is class-based and having concurrent programming features. It has multi-threading features too. It is static, safe and strongly typed programming language. Its’ file extension names are .java or .class. It first appeared in the year 1995. It is intended to develop applications which can be Written Once and Run Anywhere. It is most popular for the client-server kind of applications. It is licensed under GNU General Public License and Java Community Process. The latest version of Java is 8 was released on 14 January 2014 and Java 9 was released on 27 July 2017 and Java 10 was released in March 2018.

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Java 8 has different features such as Java Stream API, Java Time API, Java IO enhancements, Concurrency, Lambda Expressions, Functional Interfaces, and Collection API improvements. Java 9 has different features such as JShell (REPL), different Factory methods for the collections API, Module System and Reactive Streams API. In Java 8, default and static methods have been introduced in Interfaces.

Key Differences between Java 8 vs Java 9

Both Java 8 vs Java 9 are popular choices in the market; let us discuss some of the significant Difference Between Java 8 and Java 9 :

  • Java 8 and Java 9 are two different versions that come under Java programming language where Java 9 supports scripting language alongside object-oriented programming language.
  • Java 8 has lambda functions and functional programming features whereas Java 9 has different API updates along with new features.
  • Java 8 has updated with annotations support on Java Types and unsigned integer arithmetic whereas, in Java 9, lightweight JSON APIs exist for generating and consuming the JSON data streams in the form of documents.
  • Java 8 has JNI library updates and Nashorn engine which supports JavaScript compilation in JVM whereas, in Java 9, HTTP 2.0 client was updated which replaces the HttpUrlConnection that is legacy.
  • Java 8 has the feature of launching JavaFX applications whereas in Java 9 has performance updates to the segmented code cache mechanism.
  • Java 8 provides annotations support at language level whereas, in Java 9, smart compiler feature exists which can be sued to build larger projects.
  • Java 8 has provided an update which supports the environment to be run on the Windows XP operating system whereas in Java 9
  • Java 8 has removed the permanent generation as per JEP 122 specification whereas 9 has REPL feature for the purpose of scripting which combines Java and REPL together as jshell.
  • Java 8 has Stream API and bulk operations related to collections whereas Java 9 has less fragmentation and shorter sweep times along with further extensions.
  • Java 8 has Java Time API and Java IO improvements; whereas Java 9 has Money and Currency API updates.
  • Java 8 has other features such as an extension to the Comparator interface whereas Java 9 has improved Javadoc documentation and Java platform module system.
  • Java 8 has removed JDBC-ODBC bridge from its java support whereas Java 9 has interactive REPL Jshell to explore API features and other new language features.
  • Java 8 has removed PermGen memory feature whereas Java 9 has collection factory methods to directly populate the elements in the collections or lists.
  • Java 8 has added few methods such as min(), max() and sum() in few wrapper classes such as Integer, Double and Long whereas Java 9 has private interface methods where private methods were not allowed in interfaces before Java 9.

Java 8 vs Java 9 Comparison Table

Let’s look at the top Comparison between Java 8 vs Java 9

The basis of comparison Between Java 8 vs Java 9 Java 8 Java 9
Definition It is having latest features related to Functional Programming and Nashorn Engine. It has to have the latest features related to REPL (Read – Evaluate – Print – Loop) and scripting in JVM.
Usage It is used when as both programming language and scripting language. It is used as programming and object-oriented language.
Integration It can be integrated along with different functional programming languages such as Scala which is based on JVM. It can be integrated along with different functional programming languages such as Scala which is based on JVM.
Platform It supports any operating systems or platforms. It supports cross-platform operating systems.
Syntax It has functional features and easy to use features. It has JavaScript Engine which is included in JVM.
Community It has a larger community called Java Community process. It contains latest features and community has greater support for the new features. It has a larger community called Java Community process i.e. JCP being maintained by a large group of highly qualified technical experts across the industry.
License It was licensed under GNU General Public License. It was licensed under GNU General Public License.
Compiler It does not have any smart compiler. It has a smart compiler which makes the compilation process faster.
API Updates It has Date and Time updates. It has no updates related to Date and Time but has other feature updates.

Conclusion – Java 8 vs Java 9

Java 8 vs Java 9 both are having complete new features and few feature-related updates whereas Java 9 has excellent new and smart features that took Java to a new level. The JavaScript language support is the greatest feature in Java 9 compared to Java 8. The choice of the Java version to be selected depends on the functionalities and features as required to make the application work efficiently by making the trade-off choice in an effective manner.

Java is mostly used and recently Java allows in providing an environment to run the JavaScript or scripting languages in its JRE environment in JDK 9.0 version onwards by providing Nashorn JavaScript Engine. So Java can be considered for any kind of application requirement in the case of larger applications that need faster development scope and easier to develop complex services or applications where the case of optimization, messaging features and many other efficient techniques are available in Java Enterprise environment.

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