Hey guys, So... I'm stuck on the lesson 4 in level 3. I've read the thing like 20 times over and I still feel like I don't fully understand it. I mean... I feel like I don't even fully understand the structure of Java (Class, object, variables, methods) - is is like a ladder? After that - the code in the picture which is supposed to showcase the visibility of things is really confusing for me. Then comes the dive into the static and other variables and I'm completely dumbfounded. Can you maybe forward me some studying material/videos that could clear my mind a little? Thank you a lot!