Java EE includes variety of community-driven enterprise frameworks oriented primarily for advanced development, server usage and webapps (covering network communiaction layer, UI building, automated testing, persistence managers - I mean mapping objects to database, list goes on). Things like Hibernate or Spring to give more specific examples.
In short, nothing you'll be concerned with, until you grasp the basics. It's an extension for Java SE, but you still need basics to have a chance of understanding anything.
Stanford university youtube channel has some of their lectures recorded and available online, particularly
programming methodology course covers some basic concepts of programming and basics of Java completely from scratch in a quite comprehensible way, feel free try it out, it can really help you out. First several lectures do some sort of introduction where they use custom framework for exercises and you won't be able to really do it at home, but I suggest to watch and try to understand them regardless.