The ordinary HashMap is NOT Thread-Safe, It can have one null key and multiple null values. And we can impleemnt a HashMap like example below: HashMap is non-Synchronized in nature i.e. HashMap is not ...

In this quick tutorial on how the Java HashMap works internally, you'll learn the following aspects: The basic syntax of the Java HashMap. How keys, values, hash codes and node references interact.

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 ...