I have tried downloading the Tutorial Scenario Part 1 on Google Chrome and Microsoft Edge and received the same error message. I have also reinstalled Java SE download several times and read support forums on the Oracle website. I know I'm missing something. The message is:
" No (suitable) Java JDKs were found. Greenfoot requires JDK version 1.6 or later. Please also note, the Java Runtime Environment (JRE) is not sufficient."