Kotlin Function example in android studio

Kotlin Function example in android studio

Introduction:

Hello and welcome to our thorough guide to Kotlin functions. Everything you need to know about Kotlin functions, from the fundamentals to more complex issues, will be covered in this article. The Java Virtual Machine supports the statically typed programming language known as Kotlin, which was created to be clear, expressive, and secure. Kotlin's contemporary features and compatibility with Java have helped it grow in popularity among developers.

What is a Function in Kotlin?

In programming, a function is a block of code that performs a specific task. In Kotlin, functions are declared using the "fun" keyword, followed by the function name and its parameters. For example:

fun add(a: Int, b: Int): Int {

    return a + b

}

In this example, we have defined a function called "add" that takes two integer parameters and returns their sum. We can call this function in our code like this:

val sum = add(3, 5)

Here, we have called the "add" function with the arguments 3 and 5, and assigned the result to the variable "sum".

Function Parameters in Kotlin

In Kotlin, function parameters can have default values, which makes calling functions with multiple parameters more convenient. For example:

fun greet(name: String, greeting: String = "Hello") {

    println("$greeting, $name!")

}