Java Generics Explained [video]

There are a few people making java videos on youtube, but one thing that frustrates me is that the technical details are often inaccurate, or if they are accurate, the examples used don't follow best practices.

For instance, it's muscle memory for me (as a full time java dev) to define my instance fields as `private final` but most tutorials have theirs with default access. Similarly, it's typical for examples to use classes like `NumberFns`, which I wouldn't like to see in real java code. Tests are nowhere to be seen (although to be fair, they're not in this video either).

The tutorials that are accurate tend to have such low production value (e.g. not scripted, too long, constant buzzing sound) that youtube either buries the videos, or they are not worth watching.

With these videos, I'm hoping to create a set of resources that people can use to learn java concepts, without teaching them bad habits.