10 years ago.... When I first started working, I was shocked to receive a code on a USB. I asked, "What about distribution?" and they uploaded the .class file via FTP.... I can't forget the fear I felt at that time. It's really hard to convince someone who doesn't know why they need to do something.. If only this kind of lecture had appeared in the world like a light at that time ~~ Recording lectures is actually a difficult task even if there is an economic benefit.. I am so, so, so, so grateful that you are providing this as a free developer's liberal arts course. ^^ Everyone ~~ It's good for interview preparation... and it's good for practical preparation ~ You must watch this lecture.... If you don't watch it for free, your life will be free...