Courses / Java Collections Framework
4. HashMap Class
A hash table-based implementation of the Map interface, allowing null values and keys.
1 min read Chapter 4 of 16
Java
HashMap Class
A HashMap is a data structure that stores key-value pairs for efficient data retrieval.
"I need a way to quickly look up values based on unique keys."
The HashMap class in Java allows you to store data in key-value pairs, providing fast access to values using their associated keys.
"I need a way to quickly look up values based on unique keys."
The HashMap class in Java allows you to store data in key-value pairs, providing fast access to values using their associated keys.