Tech Talk... How hash map works in java

This is a very common question asked by interviewers for java.
Rather than explaining it here, I would like to compile some links that helped me immensely in understanding the internal working of hash map:

This one provides a very elaborate theoratical insite into how things work internally with hash map
http://javahungry.blogspot.com/2013/08/hashing-how-hash-map-works-in-java-or.html


This one explains the same, but rather centering the explanation around a practical example:
http://www.javacodegeeks.com/2014/03/how-hashmap-works-in-java.html

I liked both the approaches and benifitted from both these links...hoping the same will help the readers coming to this website as well.