Select the free Java Course (NOT Javascript–it's different) where you can complete 6 topics to get a certificate. You also accrue XP (experience points). There is a combination of demos, videos, and practice exercises before you qualify for a certificate.
If you have never coded before, then you may only have time for completing the first module called “Basic Concepts” (lessons from “1.1 Introduction to Java” until “9.1 Code project”), but the more modules you complete, the better prepared you will be (and the easier you will find this class).
If you already have coding experience, you will definitely benefit by completing all 6 modules FTW (well, “for the certificate” in this case“). It will you take less time if you press the “Take a Shortcut” button and complete each of the Code Projects at the end of each Module.
There will be a quiz on the first day of class base on the Java tutorials mentioned above.