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C# Multidimensional ArraysThe multidimensional array is also known as rectangular arrays in C#. It can be two dimensional or three dimensional. The data is stored in tabular form (row * column) which is also known as matrix. To create multidimensional array, we need to use comma inside the square brackets. For example: int[,] arr=new int[3,3];//declaration of 2D array int[,,] arr=new int[3,3,3];//declaration of 3D array C# Multidimensional Array ExampleLet's see a simple example of multidimensional array in C# which declares, initializes and traverse two dimensional array. using System; public class MultiArrayExample { public static void Main(string[] args) { int[,] arr=new int[3,3];//declaration of 2D array arr[0,1]=10;//initialization arr[1,2]=20; arr[2,0]=30; //traversal for(int i=0;i<3;i++){ for(int j=0;j<3;j++){ Console.Write(arr[i,j]+" "); } Console.WriteLine();//new line at each row } } } Output: 0 10 0 0 0 20 30 0 0 C# Multidimensional Array Example: Declaration and initialization at same timeThere are 3 ways to initialize multidimensional array in C# while declaration. int[,] arr = new int[3,3]= { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } }; We can omit the array size. int[,] arr = new int[,]{ { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } }; We can omit the new operator also. int[,] arr = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } }; Let's see a simple example of multidimensional array which initializes array at the time of declaration. using System; public class MultiArrayExample { public static void Main(string[] args) { int[,] arr = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } };//declaration and initialization //traversal for(int i=0;i<3;i++){ for(int j=0;j<3;j++){ Console.Write(arr[i,j]+" "); } Console.WriteLine();//new line at each row } } } Output: 1 2 3 4 5 6 7 8 9
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