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Kotlin
Kotlin taught as plain command-line programs: variables and strings, loops and collections, null safety, functions and classes. Every example is verified with the real Kotlin compiler.
Start learning ❯❯40 lessons · 14 topics · 0/40 completed
Course contents
Work top to bottom — the sidebar is the course. Topics later in the list assume the ones before them.
Kotlin Introduction
Beginner · ⏱ 3 min · standalone lesson
Getting Started
Start: Kotlin Get Started ❯Variables and Types
Start: Kotlin Variables ❯Strings
Start: Kotlin Strings ❯Operators and Conditions
Start: Kotlin Operators ❯Loops
Start: Kotlin Ranges ❯Arrays
Start: Kotlin Arrays ❯Null Safety
Start: Kotlin Nullable Types ❯Collections
Start: Kotlin Lists ❯Functions
- Kotlin Functions
- Kotlin Returning Values
- Kotlin Named Arguments
- Kotlin Default Arguments
- Kotlin Lambdas
Classes
Start: Kotlin Classes ❯Error Handling
Start: Kotlin Exceptions ❯Kotlin User Input
Beginner · ⏱ 4 min · standalone lesson
Kotlin Gradebook Project
Beginner · ⏱ 6 min · standalone lesson