C# | Adding the elements to the end of the ArrayList

// C# code to add the elements of an
// ICollection to the end of the ArrayList
using System;
using System.Collections;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating an ArrayList
        ArrayList myList = new ArrayList();

        // Adding elements to ArrayList
        myList.Add("A");
        myList.Add("B");
        myList.Add("C");
        myList.Add("D");
        myList.Add("E");
        myList.Add("F");

        Console.WriteLine("Before AddRange Method");
        Console.WriteLine();

        // displaying the item of myList
        foreach(String str in myList)
        {
            Console.WriteLine(str);
        }

        Console.WriteLine("\nAfter AddRange Method\n");

        // Here we are using AddRange method
        // Which adds the elements of myList
        // Collection in myList again i.e.
        // we have copied the whole myList
        // in it
        myList.AddRange(myList);

        // displaying the item of List
        foreach(String str in myList)
        {
            Console.WriteLine(str);
        }
    }
}

// C# code to add the elements of an
// ICollection to the end of the ArrayList
using System;
using System.Collections;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating an ArrayList
        ArrayList myList = new ArrayList();

        // adding elements in myList
        myList.Add("Geeks");
        myList.Add("GFG");
        myList.Add("C#");
        myList.Add("Tutorials");

        Console.WriteLine("Before AddRange Method");
        Console.WriteLine();

        // displaying the item of myList
        foreach(String str in myList)
        {
            Console.WriteLine(str);
        }

        Console.WriteLine("\nAfter AddRange Method\n");

        // taking array of String
        string[] str_add = { "Collections",
                             "Generic",
                             "List" };

        // here we are adding the elements
        // of the str_add to the end of
        // the myList
        myList.AddRange(str_add);

        // displaying the item of List
        foreach(String str in myList)
        {
            Console.WriteLine(str);
        }
    }
}