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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
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
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