Except for the fact that it wasn't separated by example, I'm satisfied with everything else. It was a lecture that really made me feel the inner strength. When I first encountered it, I thought that it was someone who had been recognized since the beginning of programming, but when I read the Q&A, I was really surprised that it wasn't like that. So I think it's even more amazing. It was even better because it seemed like he was trying to explain in detail for the students. ㅎㅎ I plan to continue listening to new lectures in the future, but I think it would be better if I could separate the code by package and look at it then. Since other people did that in their lectures, it was really good to review it several times.