This tutorial explains how a Java HashMap works internally and explores the challenges of implementing it, including buckets, collisions and hash codes.

HashMap has an underlying array of LinkedList s that are used to handle key collisions based on Java's hashCode () method and the size of the HashMap defined by the user. The method stringLL () ...

Creates a hashmap with a capacity of 'n' items and fixes the hashmap size at the smallest power of 2 greater than 'n'. (to optimize setting hash indices with bit operations) Used java CheckStyle for ...

HashMap vs. Hashtable similarities Both the Hashtable and HashMap implement the Map interface and both share the same set of methods used to add, remove and manipulate elements of a key-value, ...