Why doesn’t the ConcurrentSkipListMap constructors allow us to set the initial capacity like HashMap does ?
Why doesn’t the ConcurrentSkipListMap constructors allow us to set the initial capacity like HashMap
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Why doesn’t the ConcurrentSkipListMap constructors allow us to set the initial capacity like HashMap does ?
Because this data structure is backed by multiple LinkedList for whom an initial capacity constructor parameter has no meaning.
The HashMap is backed by an array (contiguous memory space) for which it makes sense to set an initial capacity because going over the initial size of this table cause the HashMap to reallocate a new table with an increased size which is very costly.