First of all, am “open source” and basically, it means i will be out in support of Open source stuffs. Well in this case, am being real, no bias.
Oracle’s OpenJDK JDK binaries for Windows, macOS, and Linux are available on release-specific pages of jdk.java.net as .tar.gz or .zip archives.
While it is easy to install netbeans 11 (dubbed Apache netbeans), it will take some manual effort to get the old Netbeans 8.2 on your linux environment.
If you are planning to work on a an artificial intelligence(AI) project and still have not decided which language you should use to program it, then you are at a right place.