C# Multidimensional Array

In C#, a multidimensional array is an array that contains one or more arrays. A multidimensional array can be considered as an array of arrays.

Declaring a Multidimensional Array

A multidimensional array can be declared in the following way:

1// Two-dimensional array
2int[,] myArray = new int[3, 4];
3
4// Three-dimensional array
5int[,,] myOtherArray = new int[2, 3, 4];

The above code declares a two-dimensional array with three rows and four columns and a three-dimensional array with two levels, three rows, and four columns.

Accessing Elements of a Multidimensional Array

To access an element of a multidimensional array, we need to specify the indices of the element that we want to access. For example, to access the element in the second row and third column of a two-dimensional array, we can write:

1int[,] myArray = new int[3, 4];
2int element = myArray[1, 2];

Initializing a Multidimensional Array

We can initialize a multidimensional array using the following syntax:

1int[,] myArray = new int[,] { { 1, 2 }, { 3, 4 }, { 5, 6 } };

This initializes a two-dimensional array with three rows and two columns.

We can also initialize a multidimensional array using nested for loops. For example, to initialize a two-dimensional array with the numbers from 1 to 12, we can write:

1int[,] myArray = new int[3, 4];
2int counter = 1;
3
4for (int i = 0; i < 3; i++)
5{
6    for (int j = 0; j < 4; j++)
7    {
8        myArray[i, j] = counter;
9        counter++;
10    }
11}