I've been tasked with a building a Java cache toolkit with various implementations all belonging to a single cache interface. One of the implementations is an actual HashMap.

While one thread is Iterating the HashMap object, if other thread try to add/modify the contents of Object then we will get Run-time exception saying ConcurrentModificationException.Whereas In ...

Performance of HashMap depends on 2 parameters which are named as follows: Initial Capacity Load Factor Initial Capacity: It is the capacity of HashMap at the time of its creation (It is the number of ...