It helped me a lot in learning Java-based stuff.

enni

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

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