Java has been one of the most widely used programming languages for over two decades, and the release of Java 9 brings with it a host of new features and improvements. The early access release of Java Development Kit (JDK) 9 on OpenJDK provides developers with a glimpse into the future of Java. In this article, we will take a closer look at what is new in Java 9 and what it means for developers.

Modularization of Java

One of the key features of Java 9 is the modularization of the Java platform. This means that the Java platform has been divided into a set of modules, each with its own responsibility. This will make it easier for developers to create more scalable and maintainable applications, as well as make the platform itself more efficient and secure. The modularization of Java 9 also enables developers to create their own custom modules, which will allow them to better manage the dependencies in their applications.

Improved Performance

Another significant improvement in Java 9 is the performance. The JVM (Java Virtual Machine) has been optimized for performance, which will result in faster application startup times and improved overall performance. Additionally, Java 9 introduces a new feature called the Java Linker, which will make it easier for developers to link their applications to the Java runtime, resulting in improved performance and reduced memory usage.

New Tools and APIs

Java 9 also introduces a range of new tools and APIs. These include the Java Shell, which allows developers to interact with the Java platform using a command line interface. There is also the jshell, a new REPL (Read-Eval-Print Loop) tool, which provides developers with an interactive shell for evaluating expressions and executing statements. These new tools and APIs will make it easier for developers to get started with Java and will improve their overall productivity.

Conclusion

Java 9 is a significant release for the Java platform, and the early access release on OpenJDK provides developers with a glimpse into what is to come. The modularization of the Java platform, improved performance, and new tools and APIs make Java 9 an exciting release for developers. With its focus on scalability, maintainability, and performance, Java 9 is sure to become a popular choice for developers who want to build high-quality, high-performance applications.