Warning: Invalid argument supplied for foreach() in /home/customer/www/techndeck.com/public_html/wp-content/plugins/use-any-font/includes/functions/uaf_font_functions.php on line 469
Hashset in Java with example - Best & Simplest Solution | Techndeck

HashSet in Java with Example

HashSet implements the Set interface and inherits the AbstratSet class in Java that uses a HashTable for storage. HashSet applies the random order of the elements. Here, In this post, we will see an example on how to create a HashSet in java and how to iterates its data.

Simplest Presentation of Java HashSet Click To Tweet

Points to remember:

  1. HashSet elements would get returned in any random order.
  2. Java HashSet won’t return duplicate elements as If there is a duplicate element in the HashSet then the old value would be overwritten.
  3. Java HashSet is non-synchronized.
  4. HashSet allows null values.



Note: In below example 1, we are creating HashSet of type Integer and in example 2, it’s of String.

Example 1


Output 1:


Note: it could come to a different order for everyone.


Example 2


Output 2:



If you like this post, please check out my other similar posts:

HashTable in Java with Example



     Hashtable Javadoc

2 thoughts on “HashSet in Java with Example

  1. Hello. I have checked your techndeck.com and i see you’ve got some duplicate content so probably
    it is the reason that you don’t rank high in google.
    But you can fix this issue fast. There is a tool that generates content like human, just search in google: miftolo’s tools

Leave a Reply

Your email address will not be published.Required fields are marked *

Facebook Twitter Instagram YouTube