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Learn kotlin Introduction


Absolutely! Kotlin is a modern programming language that's concise, expressive, and designed to work seamlessly with Java. It's widely used for Android app development, server-side development, and more. Here's a simple introduction to Kotlin with examples:

Absolutely! Kotlin is a modern programming language that's concise, expressive, and designed to work seamlessly with Java. It's widely used for Android app development, server-side development, and more. Here's a simple introduction to Kotlin with examples:

What is Kotlin?

Kotlin is a statically typed programming language developed by JetBrains. It was created to address some of the shortcomings of Java while maintaining interoperability with it. Kotlin runs on the Java Virtual Machine (JVM) and can also be compiled to JavaScript or native code.

Why Kotlin?

Example:

Let's look at a simple "Hello, World!" program in Kotlin:

Example

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

Variables and Data Types:

Kotlin supports various data types like Int, String, Boolean, etc. Here's an example:

Example

fun main() {
val name: String = "Alice" // Immutable variable
var age: Int = 30 // Mutable variable

println("Name: $name, Age: $age")
}

Control Flow:

Kotlin supports if-else statements and loops similar to other programming languages. Here's an example:

Example

fun main() {
val num = 10

if (num > 0) {
println("Positive")
} else {
println("Non-positive")
}
}

Functions:

You can define functions in Kotlin. Here's an example of a simple function to add two numbers:

Example

fun main() {
val result = add(5, 3)
println("Sum: $result")
}

fun add(a: Int, b: Int): Int {
return a + b
}

Classes and Objects:

Kotlin supports object-oriented programming. Here's a simple example of a class and its usage:

Example

fun main() {
val person = Person("Bob", 25)
println("Name: ${person.name}, Age: ${person.age}")
}

class Person(val name: String, val age: Int)

That's a brief introduction to Kotlin! It's a versatile language with many features to explore.






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