How do we access elements from the two-dimensional array in C#?

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

An element in 2-dimensional array is accessed by using the subscripts. That is, row index and column index of the array.

int x = a[1,1];
Console.WriteLine(x);

Let us see an example that shows how to access elements from two-dimensional array.

Example

 Live Demo

using System;
namespace Demo {
   class MyArray {
      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]);
            }
         }
         int x = a[1,1];
         Console.WriteLine(x);
         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
2