multidimensional arrays in C #

multidimensional Arrays are also known as rectangular arrays.

  You can declare a two-dimensional array of string variables, as follows:

String [,] names;
Alternatively, you can declare a three-dimensional array of int variables, as follows:
Int [   , ] M ; 
 
         Two-dimensional arrays:

The simplest form of a multidimensional array is a two-dimensional array. A two-dimensional array, in essence, is a list of one-dimensional arrays. 
a two-dimensional array can be thought of as a table with x rows and y columns. Here is a two-dimensional array containing 3 rows and 4 columns:
a[0][0] a[0][1] a[0][2] a[0][3]
A[1][0] a[1][1] a[1][2] a[1][3]
A[2][0] a[2][1] a[2][2] a[2][3]
A[3][0] a[3][1] a[3][2] a[3][3]
Therefore, each element in the array is identified using the element name in the form a[I, j], where A is the array name, and I and J are the subscripts that uniquely identify each element in a.


Initialize a two-dimensional array:
multidimensional arrays can be initialized by specifying a value for each row within parentheses. The following is an array with 3 rows and 4 columns. 

Int [,]A= New Int [3,4] { {0, 1, 2, 3} , /* Initialize the line with index number 0 */ {4, 5, 6, 7} , /* Initialize the line with index number 1 */ {8, 9, 10, 11} /* Initialize the line with index number 2 */}; 
           To access two-dimensional array elements:

Elements in a two-dimensional array are accessed by using subscripts (that is, the row and column indexes of the array). For example:
int= a[2,3];      

The above statement gets the 4th element in the 3rd row of the array. You can use the above to verify. Let's take a look at the following program, we'll use nested loops to work with two-dimensional arrays:
Using System;Namespace Arrayapplication{ 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} }; IntI,J; /* The value of each element in the output array */ 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 (); } }}    /span>                 When the above code is compiled and executed, it produces the following results:

A[0,0]: 0A[0,1]: 0A[1,0]: 1A[1,1]: 2A[2,0]: 2A[2,1]:  4a[3,0 ]: 3a[ 3,1]:  6a[4,0 ]: 4a[ 4,1]:  8                  

multidimensional arrays in C #