Basic Data Types

Parameters and Return Types

Type Inference

Comments in Kotlin

Function Declaration

What Kotlin Is

Optional Semicolons

The main Function

Basic Loops

Null Safety Basics

Printing Output

when Expression Basics

Kotlin and Java Interop

if as an Expression

val vs var

String Templates

Statements on one line

Type inference

The main entry point

Unit return type

if as an expression

The fun keyword

val vs var

Return type mismatch

Single-expression function

Console output typo

String template property

C-style for loop

Inclusive vs exclusive ranges

Explicit type mismatch

Assigning null

Comment syntax

Char literals

when as an expression

Comments in Kotlin

What Kotlin Is

val vs var

Type Inference

Basic Data Types

Everything Is an Object

Explicit Type Annotations

Reading Input with readLine()

The main() Function

println vs print

Java Interoperability

Arithmetic and Comparison Operators

String Templates

Concise, Expressive Syntax

Kotlin Compilation Targets

Optional Semicolons