The topics of this Java Advanced Part 2 were topics that I personally wanted to study in depth, so it was a very useful and amazing time. As I felt in the previous lectures, I think Younghan's lectures have a really good "flow." It's really fun to type code with Younghan, following this flow and building it up from the bottom. After listening to this lecture, I wanted to learn more about servlets and the content that followed, so I immediately listened to Spring MVC Part 1. As I followed the flow, I naturally learned the MVC structure and principles. Younghan's lectures are well designed, so they feel like a framework like Spring. I'm looking forward to seeing what kind of flow Younghan will use to entertain the students in Java Advanced Part 3.