Two-dimensional Int array in Kotlin

Question

Is it the easiest way to declare two-dimensional Int array with specified size in Kotlin?

val board = Array(n, { IntArray(n) })

Answer 1

Yes, your given code is the easiest way to declare a two-dimensional array.

Below, I am giving you an example of 2D array initialization & printing.

fun main(args : Array) {
    var num = 100

    // Array Initialization
    var twoDArray = Array(4, {IntArray(3)})
    for(i in 0..twoDArray.size - 1) {
        var rowArray = IntArray(3)
        for(j in 0..rowArray.size - 1) {
            rowArray[j] = num++
        }
        twoDArray[i] = rowArray
    }

    // Array Value Printing
    for(row in twoDArray) {
        for(j in row) {
            print(j)
            print(" ")
        }
        println("")
    }

}