[출처] JetBrains Academy - Kotlin Basics https://hyperskill.org/tracks/18a Kotlin Basics – JetBrains Academy — Learn programming by building your own apps Want to get a taste of programming with a cutting-edge developer language? Try Kotlin, a modern cross-platform language combining functional and object-oriented programming features. hyperskill.org 타입 정수형 타입 Integer numbers 그냥 숫자 쓰면 됨. 중간에 언더스코어..