How to define multi-dimensional arrays in C#?

C# allows multidimensional arrays. It includes an array with more than one dimension. Declare a 2-dimensional array of strings as −

string [,] names;

A 2-dimensional array can be thought of as a table, which has x number of rows and y number of columns.

Multidimensional arrays may be initialized by specifying bracketed values for each row. The following array is with 4 rows and each row has 4 columns.

int [,] a = new int [4,4] { {0, 1, 2, 3} , /* initializers for row indexed by 0 */ {4, 5, 6, 7} , /* initializers for row indexed by 1 */ {8, 9, 10, 11} /* initializers for row indexed by 2 */ {12, 13, 14, 15} /* initializers for row indexed by 3 */ };

Let u see an example to learn how to work with multi-dimensional arrays in C# −

Example

 Live Demo

using System; namespace Program {    class Demo {       static void Main(string[] args) {          /* an array with 5 rows and 2 columns*/          int[,] a = new int[5, 2] {{0,0}, {1,2}, {2,4}, {3,6}, {4,8} };          int i, j;          /* output each array element's value */          for (i = 0; i < 5; i++) {             for (j = 0; j < 2; j++) {                Console.WriteLine("a[{0},{1}] = {2}", i, j, a[i,j]);             }          }          Console.ReadKey();       }    } }

Output

a[0,0] = 0 a[0,1] = 0 a[1,0] = 1 a[1,1] = 2 a[2,0] = 2 a[2,1] = 4 a[3,0] = 3 a[3,1] = 6 a[4,0] = 4 a[4,1] = 8