An array index starts at zero. That means first item of an array will be stored at 0th

position and the position of last item of an array will be total number of items - 1.

In C#, arrays can be declared as fixed length or dynamic.

Fixed length array can store a predefined number of items, while size of dynamic arrays

increases as you add new items to the array.

Types of Arrays

-Single Dimensional Arrays

-Two Dimensional Arrays

-Jagged Arrays

One Dimensional Arrays:<type>[] <name>=new <type>[size];

int[] arr=new int[4];or

int[] arr;arr=new int[5];

orint[] arr={list of values};

Two Dimensional Arrays : <type>[,] <name>=new <type>[rows, cols];

int[,] arr=new int[3, 4];or

int[,] arr;arr=new int[2, 3];

orint[,] arr={list of values};

Jagged Arrays :<type>[][] <name>=new <type>[rows][];

int[][] arr=new int[3][];or

int[][] arr={list of values};