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Getting an enumerator for the entire ArrayList in C#?
To get an enumerator for the entire ArrayList in C#, the code is as follows −
Example
using System;
using System.Collections;
public class Demo {
public static void Main(String[] args) {
ArrayList list1 = new ArrayList();
list1.Add("A");
list1.Add("B");
list1.Add("C");
list1.Add("D");
list1.Add("E");
list1.Add("F");
list1.Add("G");
list1.Add("H");
list1.Add("I");
Console.WriteLine("Elements in ArrayList1...");
foreach (string res in list1) {
Console.WriteLine(res);
}
ArrayList list2 = new ArrayList();
list2.Add("A");
list2.Add("B");
list2.Add("C");
list2.Add("D");
list2.Add("E");
list2.Add("F");
list2.Add("G");
list2.Add("H");
list2.Add("I");
Console.WriteLine("Elements in ArrayList2...");
foreach (string res in list2) {
Console.WriteLine(res);
}
Console.WriteLine("Count of elements in ArrayList2 = " + list2.Count);
list2.RemoveAt(5);
Console.WriteLine("Count of elements in ArrayList2 (Updated) = " + list2.Count);
Console.WriteLine("Enumerator iterating the ArrayList2...");
IEnumerator demoEnum = list2.GetEnumerator();
while (demoEnum.MoveNext()) {
Console.WriteLine(demoEnum.Current);
}
}
}Output
This will produce the following output −
Elements in ArrayList1... A B C D E F G H I Elements in ArrayList2... A B C D E F G H I Count of elements in ArrayList2 = 9 Count of elements in ArrayList2 (Updated) = 8 Enumerator iterating the ArrayList2... A B C D E G H I
Example
Let us now see another example −
using System;
using System.Collections;
public class Demo {
public static void Main() {
ArrayList arrList = new ArrayList();
arrList.Add(100);
arrList.Add(200);
arrList.Add(300);
arrList.Add(400);
arrList.Add(500);
Console.WriteLine("Enumerator iterating the ArrayList...");
IEnumerator demoEnum = arrList.GetEnumerator();
while (demoEnum.MoveNext()) {
Console.WriteLine(demoEnum.Current);
}
}
}Output
This will produce the following output −
numerator iterating the ArrayList... 100 200 300 400 500
Updated on: 16-Dec-2019
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