Question

How to declare, initialize and print a 2D array (matrix) in Kotlin

Answer 1

fun main() {
    val arr = arrayOf(
        intArrayOf(1, 2, 3, 5),
        intArrayOf(4, 5, 6, 8),
        intArrayOf(7, 8, 9, 0)
    )

    val rows = arr.size
    val cols = arr[0].size

    for (i in 0 until rows) {
        for (j in 0 until cols) {
            print("${arr[i][j]} ")
        }
        println()
    }
}

 
 
/*
run:
   
1 2 3 5 
4 5 6 8 
7 8 9 0 
   
*/

 

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