I worked as a data engineer for a year without any development experience, and I couldn't understand the principles of loops and conditional statements during SQL and Python development, so I couldn't do even simple development. Then, I happened to find out about Kim Young-han's Java class, and I was able to understand the explanation of how loops and conditional statements work, and I was able to think about and solve practice problems on my own. Thank you for opening this class for free. After completing this class, I'm taking an object-oriented class and waiting for the intermediate and advanced Java classes next year, but I can't guess what the topics will be. Can you tell me in advance what the intermediate and advanced topics will be before the release? In the future, I have to use Java-based frameworks such as Hadoop, Spark, and Kafka, so I personally hope that the intermediate/advanced courses will be classes that can further solidify the basics of Java. ㅎㅎ