Before setting up the IDE, you must have the Java 9 VM installed on your machine.
: Run the installer and note the installation path (e.g., C:\Program Files\Java\jdk-9 on Windows). 2. Choosing the Right Eclipse Version
: These versions were specifically designed to embrace Java 9 features like modularity and JShell.
How to Download and Configure Eclipse for Java 9 To start developing with Java 9 in the Eclipse IDE , you typically need two main components: a compatible version of the IDE and a Java 9 Development Kit (JDK). While Java 9 is an older version and many developers have moved to Long-Term Support (LTS) versions like Java 11 or 17, it remains essential for legacy projects and understanding the foundational . 1. Prerequisites: Download the Java 9 JDK
: Modern releases (e.g., Eclipse 2024-09 ) still support Java 9 as a target execution environment, though they require a newer JDK (like Java 17) just to run the IDE itself.
For the best Java 9 support "out of the box," you should use or later.
: You can obtain the JDK from official archives like Oracle JDK 9 or open-source builds such as AdoptOpenJDK (now Adoptium) or Eclipse OpenJ9 .
