optimizing hashmap and hashset with 27

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• Difference between HashSet and HashMap? 21 answers

What's the relation between a HashSet and a HashMap?

From javadoc:

HashSet

public HashSet()

Constructs a new, empty set; the backing HashMap instance has default initial 

capacity (16) and load factor (0.75).

And what do they mean with "load factor"? Thanks in advance.

http://beetechdevzone.blogspot.com/2011/02/optimizing-hashmap-and-hashset-with_27.html

we can Find out later insya Allah