The hashCode() method of CopyOnWriteArrayList returns the hashCode value of the list.
Syntax:
public int hashCode()
Parameters: The function does not accepts any parameter.
Return Value: The function returns the hashCode value of the list.
Below programs illustrate the above function:
Program 1:
// Java Program to illustrate the CopyOnWriteArrayList// hashCode() method in Javaimport java.util.concurrent.CopyOnWriteArrayList;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // create object of CopyOnWriteArrayList        CopyOnWriteArrayList<Integer> ArrLis            = new CopyOnWriteArrayList<Integer>();          // Add elements        ArrLis.add(32);        ArrLis.add(67);        ArrLis.add(98);        ArrLis.add(100);          // print CopyOnWriteArrayList        System.out.println("CopyOnWriteArrayList: "                                          + ArrLis);          // hashCode value print        System.out.println("hashCode value: "                           + ArrLis.hashCode());    }} |
Output:
CopyOnWriteArrayList: [32, 67, 98, 100] hashCode value: 1944358
Program 2:
// Java Program to illustrate the CopyOnWriteArrayList// hashCode() method in Javaimport java.util.concurrent.CopyOnWriteArrayList;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // create object of CopyOnWriteArrayList        CopyOnWriteArrayList<String> ArrLis            = new CopyOnWriteArrayList<String>();          // Add elements        ArrLis.add("gopal");        ArrLis.add("gfg");        ArrLis.add("jgec");        ArrLis.add("sudo");          // print CopyOnWriteArrayList        System.out.println("CopyOnWriteArrayList: "                                             + ArrLis);          // hashCode value print        System.out.println("hashCode value: "                           + ArrLis.hashCode());    }} |
Output:
CopyOnWriteArrayList: [gopal, gfg, jgec, sudo] hashCode value: -1942417272
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CopyOnWriteArrayList.html#hashCode–
