Kotlin Control Flow: Iteration and the when Expression

Writing clean, readable control flow is essential for building robust applications. If you want to move beyond basic loops and nested conditional statements, mastering Kotlin's specialized iteration and matching tools is your next step. This text-only course guides you from foundational syntax to practical control flow patterns. You will learn how to write elegant loops, traverse collections in any direction, and use the powerful when expression to simplify complex conditional logic. What you'll learn: Understand the fundamentals of Kotlin's loop syntax and iteration mechanics; Implement forward and reverse iteration across ranges and collections; Apply the when expression for precise argument matching and pattern matching; Clean up nested conditional structures using modern control flow techniques; Leverage smart casts and type checks within matching expressions safely; Practice writing readable, idiomatic Kotlin code through structured text exercises. You will start with core terminology, loop mechanics, and basic range operations before diving into advanced iteration strategies. From there, you will explore how the when expression replaces traditional switch-case blocks with type-safe, flexible matching rules. This course is designed for beginners who have a basic grasp of programming concepts and want to write idiomatic Kotlin. No prior experience with advanced control structures is required. Start reading today to write cleaner, more efficient Kotlin code.