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Java Collections synchronizedList() Method with Example

Collections Class synchronizedList() method: Here, we are going to learn about the synchronizedList() method of Collections Class with its syntax and example.
Submitted by Preeti Jain, on February 07, 2020

Collections Class synchronizedList() method

  • synchronizedList() method is available in java.util package.
  • synchronizedList() method is used to return the synchronized view of the given list (l).
  • synchronizedList() method is a static method, it is accessible with the class name and if we try to access the method with the class object then also we will not get any error.
  • synchronizedList() method does not throw an exception at the time of returning a synchronized list.

Syntax:

    public static List synchronizedList(List l);

Parameter(s):

  • List l – represents the list to viewed in synchronized list.

Return value:

The return type of this method is List, it returns synchronized view of the given list.

Example:

// Java program to demonstrate the example 
// of List synchronizedList() method of Collections

import java.util.*;

public class SynchronizedListOfCollections {
    public static void main(String args[]) {
        // Instatiates a array list object
        List < Integer > arr_l = new ArrayList < Integer > ();

        // By using add() method is to add
        // objects in an array list 
        arr_l.add(10);
        arr_l.add(20);
        arr_l.add(30);
        arr_l.add(40);
        arr_l.add(50);

        // Display ArrayList
        System.out.println("Array List: " + arr_l);

        // By using SynchronizedList() method is to
        // represent the array list in synchronized view
        Collection co = Collections.synchronizedList(arr_l);

        // Display Synchronized ArrayList
        System.out.println("Collections.synchronizedList(arr_l): " + arr_l);
    }
}

Output

Array List: [10, 20, 30, 40, 50]
Collections.synchronizedList(arr_l): [10, 20, 30, 40, 50]






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