If someone who doesn't know the basics takes the class, it's hard to understand. I'm taking a Java class with government funding, so I took the class knowing the basics to some extent, so it wasn't difficult. I think you should take the class knowing the basics. The instructor used a lot of English terms, so I had to search for words here and there to find out. If it's a lecture for the basics, it would have been better if the terms were in Korean instead of English. Also, the Eclipse coding screen is too small, so it's very uncomfortable to look at. And I didn't buy the book separately, but it's a bit difficult to take the class without the book... It would have been better if you wrote on the separate information page that it's good to take it with the book, but that's too bad. Anyway, it wasn't a bad lecture for me, so I'll take the next master class. Thank you for the great lecture.