I've been a Java developer for a long time and recently started using Kotlin. This was very helpful in understanding the differences between the two languages through detailed comparisons and examples. Thank you for the great lecture!

The concept of coroutines seems to have been a truly difficult part. It was a moment where I felt that even after listening to the lecture, it is necessary to take enough time for review. I have been using coroutines for some parts of my actual work, and while I only had a rough sense of the syntax used in practice at first, this lecture was the moment I truly understood how it works. Thank you for always creating great lectures!

It is a great lecture that is easy to understand and follow.

Before I knew it, I have completed the advanced course. There were things I already knew, but for the parts I didn't know, I think I spent a huge amount of time reviewing them. Still, the reflection part remains difficult. Of course, there were fun parts too, like Kotlin DSL lol. So, I'm going to continue my studies by reviewing everything once more on my own! Thank you for always creating such great lectures!

It was great because it didn't just convey simple knowledge, but also explained principles, concepts, and usage examples.

It explains very well the things that developers familiar with Java/Scala are curious about when they first encounter the Kotlin language. This is an excellent lecture!

It was an informative lecture that will be helpful in practice. Thank you.

Taehyun! I finally finished the course I kept putting off! Surprisingly, I was shocked to see that the patterns you taught are being applied so well in actual practice lol. Thanks to you, there were parts where I finally understood why things were implemented that way, and I could also see areas that need more improvement! Thank you for always creating such great courses!

It's fun

Good~