This guide is only for Linux. You can choose Windows or macOS guide here.
Follow the instructions even if you already have some of the software installed
(including /Users/YOUR_USERNAME/Java-Training). You will not lose any previous Projects because this folder is not being erased.
Although, you might want to backup /home/YOUR_USERNAME/Java-Training to e.g. Documents folder temporarily.
All other files and subfolders of /home/YOUR_USERNAME/Java-Training will either stay intact or will be overwritten by a newer version of the software.
Download the installation archive: Java-Training.tar.gz
Follow the video guide:
You can optionally clean up the Downloads folder.