lsj59285's honest review, Introduction to Java Programming Course (renewed version) - From beginner to developer employment!! course

The explanation is not friendly from "Section 3. JAVA Inheritance and Class". It was good until then. Especially the interface part will make beginners panic. I give it 4 stars because it costs 5,500 won, but if it cost 55,000 won, I would give it 2 stars.