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How do we use multi-dimensional arrays in C#?
C# allows multidimensional arrays. Multi-dimensional arrays are also called rectangular array. 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 array in C#.
Example
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
Updated on: 23-Jun-2020
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