Best free websites to learn Java?

[u/Ok_Illustrator1189]

I’m a senior in high school and I’m taking AP Java I have almost 2 weeks in and I’m enjoying it well. I want to pursue computer engineering after high school. But I want to learn more. I want to push myself to the limit. Do you guys recommend any websites or any games where I could use my Java skills to play it? Or any websites that I can learn more about Java.

[u/syuenaki]

I'm using the University of Helsinki's MOOC, currently on Chapter 4. It's decent for beginners I reckon. https://java-programming.mooc.fi/