Multidimensional Array

syntax of 2D Arrays:

• In C#, a 2D array is declared using the [,] syntax.

• Syntax: type[,] arrayName = new type[rowSize, columnSize];

• Example:

  int matrix[3][4];

Initialization of 2D Arrays:

• 2D arrays can be initialized during declaration or later using nested loops.

• Example:

  int[,] matrix = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } };

Accessing Elements:

• Elements are accessed using row and column indices.

• Example:

  int element = matrix[1, 2]; // Accessing element in the second row, third column

Traversing a 2D Array:

• Nested loops are commonly used for traversing the entire array.

  • Example:

    for (int i = 0; i < matrix.GetLength(0); i++) {
        for (int j = 0; j < matrix.GetLength(1); j++) {
            Console.WriteLine(matrix[i, j]);
        }
    }

Common Operations:

• Sum of all elements:

  int sum = 0;
  for (int i = 0; i < matrix.GetLength(0); i++) {
      for (int j = 0; j < matrix.GetLength(1); j++) {
          sum += matrix[i, j];
      }
  }