[JAVA Basics Lecture Highly Recommended] I am a junior backend developer in my second year. I think the offline lecture was filmed and then edited and uploaded as a video. So there are often offline parts that are not covered online, but it does not interfere with taking the lecture. Starting with a managed language like JAVA, it is likely to be vulnerable to memory compared to unmanaged languages like C, but it was good that the lecture continued to explain the JVM memory structure. He always explained the concepts while drawing pictures on the whiteboard, and through code refactoring experience, I was able to experience improving the source code from AS-IS -> TO-BE. I learned about this lecture even now, so I was able to review the basics of JAVA and solidify my basics! Even if there is an intermediate or advanced lecture, I will definitely pay for the lecture by the instructor. Thank you for uploading such a good lecture :) + I subscribed and liked it because it said that you also do YouTube ㅎㅎ