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Check if ArrayList is Synchronized (thread safe) in C#
To check if ArrayList is synchronized, 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("Is ArrayList synchronized? = "+list2.IsSynchronized);
}
}
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 Is ArrayList synchronized? = False
Example
Let us see another example −
using System;
using System.Collections;
public class Demo {
public static void Main(String[] args) {
ArrayList list1 = new ArrayList();
list1.Add("One");
list1.Add("Two");
list1.Add("Three");
list1.Add("Four");
list1.Add("Five");
Console.WriteLine("Elements in ArrayList...");
foreach (string res in list1) {
Console.WriteLine(res);
}
ArrayList list = ArrayList.Synchronized(list1);
Console.WriteLine("Is ArrayList synchronized? = "+list.IsSynchronized);
}
}
Output
This will produce the following output −
Elements in ArrayList... One Two Three Four Five Is ArrayList synchronized? = True
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