Codecademy: Java

This is an informal course offered by codecademy.com.

There are no grades, homework, etc. However, this website does offer extensive interactive, work-through tutorials which teach the user skills along the way. It uses a tier system, so the user must complete the previous assignment/tutorial prior to advancing to the next.

When I finish tutorial, you get a Codecademy Badges. I'll copy and paste them here.

Link to Website

Codecademy: Java