This time, I became interested in Flutter again, so I signed up to take the course. Since I worked on iOS, I was able to understand it better than before, but the explanation was easy to understand, and the questions I was curious about were well-picked up. Thanks to this, I was able to learn about object-oriented and functional programming, which I had vaguely known about, as well as basic grammar, and I was also able to learn what Future and Stream are.