Insert and remove of an element from an array :

How to remove an element from an array : 


class Program
{
     static void Main()
    {
            ArrayList list = new ArrayList()
            list.Add("Imrez");
            list.Add("Khan");
            list.Add("Ratin");

            list.RemoveAt(1);        // It removes the element of  1st position which is "Khan".
           
            foreach (string i in list)
            {
                Console.WriteLine(i);
                Console.ReadLine();
            }
     }
}
Output :
Imrez
Ratin
                 -----------------------*---------------------

How to insert an element in an array :

class Program
{
     static void Main()
    {
            ArrayList list = new ArrayList()
            list.Add("Imrez");
            list.Add("Khan");
            list.Add("Ratin");

            list.Insert(0,"Mr.");   //It insert an element in zero number position which is "Mr."

             foreach (string i in list)
            {
                Console.WriteLine(i);
                Console.ReadLine();
            }
    }
}
Output :
Mr.
Imrez
Khan
Ratin
                                     -----------------------*---------------------