WebIf a companion object is defined in your target class, go with s1m0nw1's approach. The advantage is that you can call the extension function without an instance (statically) of the target class. WebJul 16, 2024 · There are two ways to define an array in Kotlin. Using the arrayOf () function – We can use the library function arrayOf () to create an array by passing the values of the …
Kotlin Array - GeeksforGeeks
WebJul 5, 2024 · Here we used the map method to generate a list of strings describing our current inventory. 7.3. Using forEach As a final example, we’ll use what we’ve learned already and introduce the forEach method. The forEach method performs an action on each entry in … Web1. Using map () function. A simple and fairly efficient solution is to use the map () function to convert each value in the integer array to a String. 2. Using for loop. Another approach is … sunova koers
Initializing Arrays in Kotlin Baeldung on Kotlin
WebMar 16, 2024 · fun main( args: Array ) { // declaring null array of size 5 // equivalent in Java: new Integer [size] val arr = arrayOfNulls (5) print("Array of size 5 containing only null values: ") println( arr.contentToString()) val strings = Array(5) { "n = $it" } print("Array of size 5 containing predefined values: ") println( strings.contentToString()) val … WebTo create a String Array in Kotlin, use arrayOf () function. arrayOf () function creates an array of specified type and given elements. Syntax The syntax to create an Array of type … WebThe most common way to declare and initialize arrays in Kotlin is the arrayOf () function. To get a two-dimensional array, each argument to the arrayOf () function should be a single dimensional array. This is demonstrated below: 1 2 3 4 5 6 7 fun main() { var arr = arrayOf(intArrayOf(1, 2, 3), intArrayOf(4, 5, 6), intArrayOf(7, 8, 9)) sunova nz