Syntax error Copy all the elements from one set to another in Java

Copy all the elements from one set to another in Java

Use the clone() method to copy all elements from one set to another.

First HashSet −

HashSet <String> set = new HashSet <String>();
set.add("One");
set.add("Two");

Create another set and clone first set into the second −

HashSet <String> newSet = new HashSet <String>();

Copy (clone) all elements to the second set −

newSet = (HashSet)set.clone();

The following is an example to copy all elements from one set to another −

Example

 Live Demo

import java.util.*;
public class Demo {
   public static void main(String args[]) {
      HashSet <String> set = new HashSet <String>();
      HashSet <String> newSet = new HashSet <String>();
      set.add("One");
      set.add("Two");
      System.out.println("Hash Set "+ set);
      newSet = (HashSet)set.clone();
      System.out.println("New Hash Set: "+ newSet);
   }
}

Output

Hash Set: [One, Two]
New Hash Set: [One, Two]
Updated on: 2019-07-30T22:30:24+05:30

1K+ Views

Kickstart Your Career

Get certified by completing the course

Get Started
Advertisements