Java's HashMap is a high-performance data structure that stores key-value pairs using an . It relies on hashing to convert keys into array indices, providing nearly constant-time performance for most operations. 🏗️ Core Components
Node<K,V>[] table;
At its core, a HashMap is built on a fundamental, yet clever, idea: java hashmap under the hood
Searching in a linked list is O(n) . If thousands of keys land in the same bucket (due to a poor hash function or malicious input), your "constant-time" HashMap becomes a linear-time disaster. Java's HashMap is a high-performance data structure that