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How to add an item to an ArrayList in C#?
ArrayList is a non-generic type of collection in C# that dynamically resizes.
Let us see how to initialize ArrayList in C# −
ArrayList arr= new ArrayList();
Add an item to an Array List −
ArrayList arr1 = new ArrayList(); arr1.Add(30); arr1.Add(70);
Let us see the complete example to implement ArrayList in C#. Here we have two array lists. The 2nd array list is appended to the first list.
Example
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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