Hi Surendra,

First off, thank you for reading this article. Readers like you are essentially very important.
The purpose of this article was to introduce to the nitty-gritty of the HashMap. So I left out parts which can be found on SO.

And these are easily available. Like for instance, hashmap using which type of Linked List can be found here

If you have any difficulties finding anything, please reach out again. Happy to help you. 😁