Multimap Examples using Java Collections, Apache Collections and Guava Collections
Single Key with Multiple Values using Hashmap with List using Java Collections This post will discuss Multimap and how this could be …
Guava Optional Class Example
Problem with Null Pointers — using Guava’s Optional Class Ever since I can remember NullPointerExceptions (NPEs) have been a source of frustration …
Guava Multiset Example
Guava Multiset Implementation A Multiset extends Multimap and has the added feature that it holds duplicate values and maintains their counts. The …
Guava Multimap – TreeMultimap Implementation Example
Guava Multimap – TreeMultimap Implementation The TreeMultimap is a variation of a Map in which multiple values or objects are associated with …
Guava ClassToInstanceMap Example
Guava ClassToInstanceMap A special type of collection that uses the class as the key and the instance of that class as the …
Guava Table Example
Guava Table A special collection that allows us to use two keys as indexes, a row key and a column key with …