Hello I am a new backend developer with 1 year of experience I bought it right away because the type of lecture I wanted came out and I completed it. Every time I listen to the lecture, I am amazed that I can develop in this way and wonder if I can apply it to my company's code ㅎㅎ Since our company has been in business for decades, there are a lot of the best (?) codes of our senior developers at the time. (How should I put it.. It was similar to when you introduced the ASIS version of Minesweeper ㅎㅎ) Watching the instructor change this legacy to object-oriented, I feel that our company's code can also be changed in a better direction and I want to fix it well ㅎㅎ I am still a newbie so I have a lot of shortcomings, but I think I can produce good results by studying various lectures and books with the instructor~? In addition to abstraction, I will try to make it easier for future generations to read! Thank you so much for the great lecture, and I will take the test code lecture if I get the chance. Thank you! :)