What is guava?

What is guava?

Guava is a set of core Java libraries from Google that includes new collection types (such as multimap and multiset), immutable collections, a graph library, and utilities for concurrency, I/O, hashing, caching, primitives, strings, and more! It is widely used on most Java projects within Google, and widely used by many other companies as well.

What is multimap in guava?

Introduction : A Multimap is a general way to associate keys with arbitrarily many values. Guava’s Multimap framework makes it easy to handle a mapping from keys to multiple values. There are two ways to think of a Multimap conceptually : 1) As a collection of mappings from single keys to single values.

What is Guava library in Java?

Guava Guava is a set of core Java libraries from Google that includes new collection types (such as multimap and multiset), immutable collections, a graph library, and utilities for concurrency, I/O, hashing, caching, primitives, strings, and more!

Can I use guava to work with Java maps?

Overview In this tutorial we’ll illustrate the most useful ways you can leverage Guava to work with Java Maps. Let’s start very simple and create a HashMap without the new operator, using Guava: