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How to declare a two-dimensional array in C#
A 2-dimensional array is a list of one-dimensional arrays. Declare it like the two dimensional array shown below −
int [,] a
Two-dimensional arrays may be initialized by specifying bracketed values for each row.
int [,] a = new int [4,4] {
{0, 1, 2, 3} ,
{4, 5, 6, 7} ,
{8, 9, 10, 11} ,
{12, 13, 14, 15}
};The following is an example showing how to work with two-dimensional arrays in C# −
Example
using System;
namespace ArrayApplication {
class MyArray {
static void Main(string[] args) {
/* an array with 3 rows and 2 columns*/
int[,] a = new int[3, 2] {{0,0}, {1,2}, {2,4} };
int i, j;
/* output each array element's value */
for (i = 0; i < 3; 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
Updated on: 20-Jun-2020
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