Data structure - hash table
1, HashSet, HashMap, HashTable
First, set represents the unordered elements of the set. Duplicate elements are not allowed in the set Map represents a set composed of multiple key values. Map set is an extension of set set
Based on hashing principle, HashMap stores and obtains objects through put() and get() methods.
Create a HashMap M ...
Posted by nblackwood on Fri, 24 Dec 2021 08:27:06 +0100