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Hello, I am a 14-year-old middle school student who is an Android developer. I always wanted to study Kotlin, but there were not many lecture videos compared to Java because Kotlin tends to be pushed aside by Java on YouTube and the Internet. Then I found this lecture and asked my father right away. And after listening to the lecture myself, I realized that my choice was right. It was like a ray of light. I am grateful and respectful for creating such a great lecture.
Hello ChanHoo~ Thank you for taking the course Let me talk briefly about Java and Kotlin Kotlin was adopted as an official supported language in 2017, and Kotlin has been designated as the main language for Android since 2019~ Therefore, everyone who developed Android in the past developed it in Java. In the case of old projects, there are still apps implemented in Java, and there are many that mix Java and Kotlin code. However, most newly developed services use Kotlin as the main language~ (I also developed Android in Java at first~) If you have any questions during the course, please feel free to ask~ Thank you :)