Question

What is a Jagged Array in C#?

Answer 1

A jagged array is an array whose elements are arrays. The elements of a jagged array can be of different dimensions and sizes. A jagged array is sometimes called an "array of arrays."

 

A special type of array is introduced in C#. A Jagged Array is an array of an array in which the length of each array index can differ.

 

Example

1. int[][] jagArray = new int[5][];    

In the above declaration, the rows are fixed in size. But columns are not specified as they can vary.

 

Declaring and initializing a jagged array.

1. int[][] jaggedArray = new int[5][];         
2. jaggedArray[0] = new int[3];    
3. jaggedArray[1] = new int[5];    
4. jaggedArray[2] = new int[2];    
5. jaggedArray[3] = new int[8];    
6. jaggedArray[4] = new int[10];    
7. jaggedArray[0] = new int[] { 3, 5, 7, };    
8. jaggedArray[1] = new int[] { 1, 0, 2, 4, 6 };    
9. jaggedArray[2] = new int[] { 1, 6 };    
10. jaggedArray[3] = new int[] { 1, 0, 2, 4, 6, 45, 67, 78 };    
11. jaggedArray[4] = new int[] { 1, 0, 2, 4, 6, 34, 54, 67, 87, 78 };