Kotlin Questions

for-each loop

for loop

while loop

do-while loop

mutableMapOf("key1" to "value1", "key2" to "value2")

mapOf("key1" to "value1", "key2" to "value2")

hashMapOf("key1" to "value1", "key2" to "value2")

dictionaryOf("key1" to "value1", "key2" to "value2")

def myFunction() {}

void myFunction() {}

function myFunction() {}

fun myFunction() {}

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To add explanations or disable code temporarily

To import external libraries

To declare variables

To define code blocks

A way to define anonymous functions.

A type of loop in Kotlin.

A keyword used for error handling.

A special kind of variable.

There is no difference; both are interchangeable.

emptyList() creates an empty immutable list, while mutableListOf() creates an empty mutable list.

emptyList() is used for numbers, while mutableListOf() is used for strings.

emptyList() creates a list with a fixed size, while mutableListOf() creates a list with dynamic size.

Kotlin infers the return type automatically; no explicit specification is needed.

Using the 'return' keyword followed by the type.

By placing a colon (:) after the function parameters and specifying the type.

By using the '->' symbol followed by the type before the function body.

By using the 'override' keyword before the constructor declaration.

You can't define multiple constructors in Kotlin.

Using the 'secondary' keyword before the constructor declaration.

By defining another constructor inside the class body using the 'constructor' keyword.

internal

private

public

protected