Question

How to print a two dimensional (2D) array in Kotlin

Answer 1

fun main() {
    val arr: Array<IntArray> = arrayOf(
        intArrayOf(1, 2),
        intArrayOf(3, 4, 5, 6),
        intArrayOf(7, 8, 9)
    )

    for (i in arr.indices) {
        println(arr[i].contentToString())
    }
}




/*
run:

[1, 2]
[3, 4, 5, 6]
[7, 8, 9]

*/

 

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Answer 2

fun main() {
    val arr: Array<IntArray> = arrayOf(
        intArrayOf(1, 2),
        intArrayOf(3, 4, 5, 6),
        intArrayOf(7, 8, 9)
    )

    for (row in arr) {
        println(row.contentToString())
    }
}




/*
run:

[1, 2]
[3, 4, 5, 6]
[7, 8, 9]

*/

 

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Answer 3

fun main() {
    val arr: Array<IntArray> = arrayOf(
        intArrayOf(1, 2),
        intArrayOf(3, 4, 5, 6),
        intArrayOf(7, 8, 9)
    )

    for (row in arr) {
        for (n in row) {
            print("$n ")
        }
        println()
    }
}




/*
run:

1 2 
3 4 5 6 
7 8 9 

*/

 

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