Why initialize HashSet<>(0) to zero?

Question

I love a HashSet<>() and use this eagerly while initializing this with the default constructor:

Set users = new HashSet<>();
         


        

Answer 1

The Initial Load factor of HashMap is 16. When HashMap holds data of 12 Records which is 75% of its initial size. then HashMap increases its size.

So here we just set the initial capacity as 0 by passing it in Constructor.