Tasks | Level 2 | Lesson 8

Class[] interfaces = {SomeInterfaceWithMethods.class}; - what is this??? {} it's a static block or what???

If, like me, you were utterly stumped by the second task here, then still just as stumped after looking at the solution... Well, for me, I realized that I had no idea what the difference was between using the generic <T> vs. <?>. They both refer to an unknown object type, so when you use each of them? I found the top-ranked explanation here very useful and I recommend it for anyone else who is having difficulty with this subject. https://stackoverflow.com/questions/10943137/difference-between-generic-type-and-wildcard-type