The hashCode() method of CopyOnWriteArrayList method in Java

To get the hash code value of the list, you need to use the hashCode() method of the CopyOnWriteArrayList class.

The syntax is as follows

public int hashCode()

To work with CopyOnWriteArrayList class, you need to import the following package

import java.util.concurrent.CopyOnWriteArrayList;

The following is an example to implement CopyOnWriteArrayList class hashCode() method in Java

Example

 Live Demo

import java.util.concurrent.CopyOnWriteArrayList;
public class Demo {
   public static void main(String[] args) {
      CopyOnWriteArrayList<Integer> arrList = new CopyOnWriteArrayList<Integer>();
      arrList.add(30);
      arrList.add(40);
      arrList.add(60);
      arrList.add(70);
      arrList.add(90);
      arrList.add(100);
      arrList.add(120);
      System.out.println("CopyOnWriteArrayList = " + arrList);
      System.out.println("HashCode of the CopyOnWriteArrayList class = " + arrList.hashCode());
   }
}

Output

CopyOnWriteArrayList = [30, 40, 60, 70, 90, 100, 120]
HashCode of the CopyOnWriteArrayList class = -494097927