difference between ArrayList and List in c# dot net

Today I will explain what is the difference between ArrayList and List?

ArrayList	List
Syntax: ArrayList Arr = new ArrayList(); Arr.Add(123); Arr.Add(“Dev”); Arr.Add(‘C’);	Syntax: List<int> Lst = new List<int>(); Lst.Items.Add(1); Lst.Items.Add(2); Lst.Items.Add(3);
ArrayList belongs to System.Collection namespace. You need to import System.Collection namespace to your class files with using keyword. Using System.Collections;	List belongs to System.Collections.Generic namespace. You need to import System.Collection.Generics namespace to your class files with using keyword. Using System.Collections.Generics;
ArrayList is not strongly typed. For better understand it does not have type restriction. Ex. ArrayList Arr = new ArrayList(); Arr.Add(123); Arr.Add(“C”); Arr.Add(“Devendra Gohel”); So you can store anything in arraylist it’s not matter what types of data inserted.	List is strongly typed. Ex. List<int> Lst = new List<int>(); Lst.Add(1); Lst.Add(2); Lst.Add(“Devendra”);// throw error. So you cannot store anything to the list because it’s already defined which data type is going to stored. In this we already defined int data type so now list allowed only numeric fields.
ArrayList stored all data as object thus when we need to get back those data we must remember what you stored. int number = Convert.ToInt32(Arr[0]); char charn = Convert.ToChar(Arr[1]); string str = Arr[2].ToString();	List is stored defined data types so we need not to worry about it.
Arraylist using loop you need to use object data type. Ex. Foreach(Object data in Arr) {   Console.WriteLine(data); }	You can iterate over Generic using list already defined data type. Ex. Foreach(int data in Lst) {  Console.WriteLine(data); }

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Difference between ArrayList and List