I felt disillusioned with my current job, so I decided to change jobs to become a developer, and I thought I should learn Java before going to the boot camp so I could be polite. Of course, other lectures are good, but the best thing about Professor Kim Young-han's lecture is that there are problems at the end of each chapter that allow me to think and write on my own. The lecture running time? It's not too long, so I could sit down after work and listen without feeling burdened, and as I listened, I became curious about the next lecture, so it was a lecture that went smoothly. In fact, I was scared and couldn't decide whether to take the upper-level lectures or not, but after listening to the introduction, I became curious about the next lecture, so I paid and am now taking the basic lecture! Thank you for guiding me, a novice :)