Introduction & Core Concepts

50 lessons in Kotlin

• Printing OutputQuiz
• The main FunctionQuiz
• Function DeclarationQuiz
• Basic Data TypesQuiz
• Optional SemicolonsQuiz
• What Kotlin IsQuiz
• Null Safety BasicsQuiz
• Parameters and Return TypesQuiz
• String TemplatesQuiz
• Type InferenceQuiz
• val vs varQuiz
• Kotlin and Java InteropQuiz
• Basic LoopsQuiz
• Comments in KotlinQuiz
• if as an ExpressionQuiz
• when Expression BasicsQuiz
• C-style for loopCode Quiz
• Statements on one lineCode Quiz
• if as an expressionCode Quiz
• String template propertyCode Quiz
• Comment syntaxCode Quiz
• Single-expression functionCode Quiz
• val vs varCode Quiz
• Char literalsCode Quiz
• Explicit type mismatchCode Quiz
• The fun keywordCode Quiz
• Type inferenceCode Quiz
• Return type mismatchCode Quiz
• Console output typoCode Quiz
• when as an expressionCode Quiz
• Inclusive vs exclusive rangesCode Quiz
• Unit return typeCode Quiz
• The main entry pointCode Quiz
• Assigning nullCode Quiz
• Optional SemicolonsFlashcard
• Basic Data TypesFlashcard
• Type InferenceFlashcard
• Java InteroperabilityFlashcard
• Arithmetic and Comparison OperatorsFlashcard
• Comments in KotlinFlashcard
• String TemplatesFlashcard
• Everything Is an ObjectFlashcard
• The main() FunctionFlashcard
• val vs varFlashcard
• Kotlin Compilation TargetsFlashcard
• What Kotlin IsFlashcard
• Concise, Expressive SyntaxFlashcard
• Reading Input with readLine()Flashcard
• Explicit Type AnnotationsFlashcard
• println vs printFlashcard