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Subjects

JAVASCRIPTHTMLCSSPYTHONSQLJAVACPPCSHARPPHPTYPESCRIPTCRUBYGOSWIFTKOTLINRUSTRBASHSCALAOBJECTIVE-CDARTPERLLUAMATLABXMLJSONMARKDOWNASSEMBLYLATEXYAMLSOLIDITYBLOCKCHAIN

Topics

Kotlin Basics

Introduction to KotlinInstalling KotlinKotlin SyntaxKotlin VariablesKotlin Data TypesKotlin OperatorsKotlin CommentsKotlin Input/Output

Control Flow

Kotlin If-Else StatementsKotlin When ExpressionKotlin For LoopsKotlin While LoopsKotlin Do-While LoopsKotlin Break and ContinueKotlin RangeKotlin Exceptions

Functions

Kotlin Function BasicsKotlin Function ParametersKotlin Return TypesKotlin Default ArgumentsKotlin Named ArgumentsKotlin Infix FunctionsKotlin Inline FunctionsKotlin RecursionKotlin Lambda Expressions

Object-Oriented Programming

Kotlin ClassesKotlin ObjectsKotlin ConstructorsKotlin InheritanceKotlin InterfacesKotlin Abstract ClassesKotlin Data ClassesKotlin Sealed ClassesKotlin Enum ClassesKotlin Nested ClassesKotlin Inner ClassesKotlin Visibility Modifiers

Collections

Kotlin ListsKotlin SetsKotlin MapsKotlin ArraysKotlin Collection OperationsKotlin Sequences

Null Safety

Kotlin Nullable TypesKotlin Safe CallsKotlin Elvis OperatorKotlin Not-null AssertionsKotlin Smart Casts

Functional Programming

Kotlin Higher-Order FunctionsKotlin Function TypesKotlin ClosuresKotlin CurryingKotlin Composition

Generics

Kotlin Generic FunctionsKotlin Generic ClassesKotlin Type ConstraintsKotlin Variance

Coroutines

Kotlin Coroutine BasicsKotlin Suspending FunctionsKotlin Coroutine ScopeKotlin Coroutine ContextKotlin Coroutine BuildersKotlin Coroutine DispatchersKotlin Flow

Extension Functions

Kotlin Extension Functions BasicsKotlin Extension PropertiesKotlin Companion Object Extensions

Delegation

Kotlin Delegation PatternKotlin Property DelegationKotlin Observable Properties

Reflection

Kotlin Reflection BasicsKotlin Class ReferencesKotlin Callable References

Interoperability

Kotlin-Java InteroperabilityKotlin-JavaScript InteroperabilityKotlin Native

Testing

Kotlin Unit TestingKotlin Test FrameworksKotlin Mocking

Advanced Topics

Kotlin DSLKotlin Operator OverloadingKotlin Type AliasesKotlin Inline ClassesKotlin ContractsKotlin AnnotationsKotlin Metaprogramming

Installing Kotlin

Kotlin is a modern, concise, and expressive programming language that runs on the Java Virtual Machine (JVM). Setting up Kotlin on your system is the first step towards developing powerful applications. This guide will walk you through the process of installing Kotlin using various methods.

Method 1: Using IntelliJ IDEA

The easiest way to get started with Kotlin is by using IntelliJ IDEA, which comes with built-in Kotlin support.

  1. Download and install IntelliJ IDEA from the official JetBrains website.
  2. During installation, make sure to select the Kotlin plugin.
  3. Once installed, create a new Kotlin project to start coding immediately.

Method 2: Command-line Installation

For developers who prefer working with command-line tools, Kotlin can be installed using package managers.

On macOS (using Homebrew):

brew update
brew install kotlin

On Linux (using SDKMAN!):

curl -s https://get.sdkman.io | bash
source "$HOME/.sdkman/bin/sdkman-init.sh"
sdk install kotlin

Method 3: Standalone Compiler

You can also download the standalone compiler directly from the Kotlin website:

  1. Visit the official Kotlin website and navigate to the download page.
  2. Download the compiler zip file.
  3. Extract the contents to a directory of your choice.
  4. Add the bin directory to your system's PATH.

Verifying the Installation

After installation, verify that Kotlin is correctly set up by running the following command in your terminal:

kotlin -version

This should display the installed Kotlin version.

Writing Your First Kotlin Program

Once Kotlin is installed, you can create a simple "Hello, World!" program to test your setup:

fun main() {
    println("Hello, World!")
}

Save this code in a file named HelloWorld.kt and compile it using:

kotlinc HelloWorld.kt -include-runtime -d HelloWorld.jar

Run the compiled program with:

java -jar HelloWorld.jar

Next Steps

Now that you have Kotlin installed, you're ready to explore its features and start building applications. Consider learning about Kotlin Syntax and Kotlin Variables to begin your journey.

Important Considerations

  • Ensure your system meets the minimum requirements for running Kotlin.
  • Keep your Kotlin installation up to date for the latest features and bug fixes.
  • Familiarize yourself with the Kotlin documentation for in-depth information.

By following this guide, you've successfully set up Kotlin on your system. Whether you're using an IDE or command-line tools, you're now ready to dive into Kotlin programming and explore its powerful features.