In C#, A Jagged array is an one type of array of arrays.We can initialize a jagged array as −
Where, num is an array of two arrays of integers - num is an array of 3 integers and num is an array of 4 integers.The method Length returns the number of arrays contained in the jagged array. A jagged array is an array of arrays, and therefore its elements are reference types and are initialized to null. The elements of a jagged array can be of different dimensions and sizes. A jagged array is sometimes called an "array of arrays."