Download Org.apache.commons.collections4.listvaluedmap: Work

Once you have downloaded the library, you can implement the map using ArrayListValuedHashMap .

The ListValuedMap interface is a powerful specialized map provided by the Apache Commons Collections library. Unlike a standard Map , which associates a single key with a single value, a ListValuedMap allows you to associate a single key with a . This is particularly useful for grouping data or handling one-to-many relationships in Java. download org.apache.commons.collections4.listvaluedmap

If you are not using a build tool, you can download the binary JAR directly from the Apache Commons Collections Download page. Look for the section. Download the .zip or .tar.gz archive. Once you have downloaded the library, you can