Jagged Array or Array of Arrays in C with Examples

  C programming language a jagged array plays a very important role in part of the array. 

The array can be of different sizes.it is producing rows of jagged edges.
when visualized as output. a jagged array is an array of array. The difference between a rectangular array and a jagged array is rectangular array is one object and
two dimensions or each element are integers but in the case of a jagged array, all elements are the different lengths and different sizes.

create the jagged array  in C using pointers
int *const jagged[] = {
  (int []) { 0, 1 },
  (int []) { 1, 2, 3 }
};

We are create small example of jagged array-:

we want  to always size of array sizes  :

int jagged[][3] = { {2,4}, {1,2,3} };

int size = sizeof(jagged);

printf("size=%d\n", size);

int* p = (void*)jagged;
for (int i=0;i<(size/(int)sizeof(int));i++)
{
    printf("%d=%d\n", i, *p++);
}
output:
size=24
0=2
1=4
2=0
3=1
4=2
5=3

----------------------------------------------Example of c#---------------------------------------------

We are also creating a jagged array program in c#.let's see the example of the jagged array.

class ArrayTest { static void Main() { // Declare the array of two elements: int[][] arr = new int[2][]; // Initialize the elements: arr[0] = new int[5] { 1, 3, 5, 7, 9 }; arr[1] = new int[4] { 2, 4, 6, 8 }; // Display the array elements: for (int i = 0; i < arr.Length; i++) { System.Console.Write("Element({0}): ", i); for (int j = 0; j < arr[i].Length; j++) { System.Console.Write("{0}{1}", arr[i][j], j == (arr[i].Length - 1) ? "" : " "); } System.Console.WriteLine(); } // Keep the console window open in debug mode. System.Console.WriteLine("Press any key to exit."); System.Console.ReadKey(); } }

   Output:
    Element(0): 1 3 5 7 9
    Element(1): 2 4 6 8