I am a subscriber who usually enjoys watching Yalko's YouTube videos and I am an aspiring developer. So when this Java lecture was opened, I took it to review Java, my main language. As I watched the lecture, I don't know if it's because I am a subscriber of Yalko, but the quality of the lecture is good and the examples are really helpful for reviewing. The explanations that are given one by one for beginners are also good. If you are learning Java for the first time, I think your eyes will improve every time you chew on this lecture. Lastly, what was a little disappointing was that you intentionally didn't mention much about the process that the code goes through in memory because you explained it in a way that even beginners can easily understand. I wanted to hear that part... However, since it is an introductory lecture, I can understand it well. I think it would be good if you supplemented that part when you give a beginner level or higher course later.