How to initialize jagged arrays in C#?

Jagged array is an array of arrays. You can declare a jagged array named marks of type int as −

int [][] marks;

Initialize the jagged array as −

int[][] marks = new int[2][]{new int[]{92,93,94},new int[]{85,66,87,88}};

The marks is an array of two array of integers.

• marks[0] is an array of 3 integers
• marks[1] is an array of 4 integers.

The following is an example displaying how to use jagged arrays and create an array of three arrays of integers.

Example

 Live Demo

using System;
namespace Demo {
   class Program {
      static void Main(string[] args) {
         /* a jagged array of 3 array of integers*/
         int[][] a = new int[][]{new int[]{0,0},new int[]{1,2},new int[]{2,4} };
         int i, j;
         /* output each array element's value */
         for (i = 0; i < 3; i++) {
            for (j = 0; j < 2; j++) {
               Console.WriteLine("a[{0}][{1}] = {2}", i, j, a[i][j]);
            }
         }
         Console.ReadKey();
      }
   }
}

Output

a[0][0] = 0
a[0][1] = 0
a[1][0] = 1
a[1][1] = 2
a[2][0] = 2
a[2][1] = 4