Java 9 is right around the corner. Many Java developers and enthusiasts has already got their hands on it and started testing the new feature of Java 9. If your also interested to check out whats new with it before its official public release. Here you go.
Java 9 can be downloaded from here Download JDK 9
By clicking on the above link, it will take you to the official Java early access release page. Choose your operating system and download the respective JDK and install it.
Stay tuned for more update on Java 9.