After choosing a career as a developer, I started studying Java development, and although developing is fun, I had a lot of difficulties because I didn't understand the concepts well. I guess I'm not smart enough to understand quickly. I was sad, but I tried to understand by searching books and videos, but I had a hard time. But the explanation was so clear, I understood the concepts at once, so I had a lot of fun watching the video. I guess I should say the explanation is drawn in my head, Anyway, it's so fun. Thank you. I can't wait for the next lecture, my heart is pounding