
Installing Oracle JDK 8 on Debian for BlueJ 4.1.4 and earlier.Installation Procedure for BlueJ 4.1.4 and earlier on Ubuntu.Installation Procedure for BlueJ 4.1.4 and earlier on Debian.Installation Procedure for BlueJ 4.2.0 and later on Debian.We recommend using the latest version of BlueJ, if you have a 64-bit version of Debian buster (or later) or Ubuntu 18.10 (or later). BlueJ 4.1.4 and earlier ran on 32-bit or 64-bit operating systems, and could use OpenJDK or Oracle JDK. BlueJ 4.2.0 and later use Java 11 (or later), which require a 64-bit OS, and use OpenJDK and OpenJFX.

These instructions are different for BlueJ 4.2.0 and later, versus BlueJ 4.1.4 and earlier. These are the instructions for the "deb"-package for BlueJ, which can be installed on Debian, Ubuntu and
