Learn Kotlin - Comprehensive Course

Beginner Level: Kotlin Fundamentals

1. Introduction to Kotlin
   • History and features of Kotlin
   • Kotlin vs Java comparison
   • Setting up environment: IntelliJ IDEA, Android Studio
   • Running Kotlin programs (REPL, command line, IDE)
2. Basic Syntax and Data Types
   • Kotlin program structure
   • Variables: val (immutable), var (mutable)
   • Basic data types: Int, Double, Float, Boolean, Char, String
   • Type inference and explicit typing
   • Nullable types and null safety (?, !!)
3. Operators and Expressions
   • Arithmetic, relational, logical, assignment operators
   • Increment/decrement operators
   • Operator precedence
   • Elvis operator (?:), safe call (?.)
4. Control Flow Statements
   • Conditional: if, if-else, when
   • Loops: for, while, do-while
   • Ranges and progressions
   • Breaking and continuing loops
5. Functions
   • Defining functions and parameters
   • Default and named arguments
   • Single-expression functions
   • Variable number of arguments (vararg)
   • Local functions