ArrayList is a non-generic collection in C# that can be dynamically resized.
Let us see how to initialize ArrayList in C# -
ArrayList arr= new ArrayList();
Add items to array list -
ArrayList arr1 = new ArrayList(); arr1.Add(30); arr1.Add(70);
Let us see the complete example of implementing ArrayList in C#. Here we have two array lists. The second array list is appended to the first list.
using System;
using System.Collections;
public class MyClass {
public static void Main() {
ArrayList arr1 = new ArrayList();
arr1.Add(30);
arr1.Add(70);
ArrayList arr2 = new ArrayList();
arr2.Add(200);
arr2.Add(240);
arr1.AddRange(arr2);
for (int i = 0; i < arr1.Count; i++)
Console.WriteLine(arr1[i]);
}
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