I had a superficial understanding of Spring, but I think I learned it in a fun way. The part where I switched from making a service using only Java to Spring was especially fun. After that, there were a lot of theoretical stories, and when I kept repeating getbean in ac, I thought it was a little boring, but I was able to follow along because it was Younghan's fun lecture.. If I had studied in a different way, I think I would have dropped out. After that, I think I should make something and study JPA. Whenever I see Younghan in the media (Baemin event, Inflearn), I think I've taken his lecture, so I feel very close to him. Hahaha.. I guess it's because I enjoyed his lectures that much. You made the concept of object-oriented programming so attractive and fun. Thank you so much~!