I think it's the best introductory course to Kotlin.

bigboyang

Through this lecture, you can learn about the characteristics and background of the Kotlin language, grammar and operation principles, usage examples, and things to be careful of when using Java and Kotlin together.

lannstark

인프런 10주년! 사랑주간 전체 할인

Java to Kotlin Starter Guide for Java Developers

Hello CHEOL!!! Oh my, thank you so much~~!! The comments you left were a great help!! Have a great rest of your weekend~!! ☺️

입문

초급

중급이상

코틀린

Kotlin

자바

Java

객체지향 프로그래밍(Object-Oriented Programming, OOP)

Course Introduction

Kotlin: Variables, Types, and Operators

How to control code in Kotlin

OOP in Kotlin

Kotlin FP

Additional Kotlin features to keep in mind

The Last Lecture