
Guava introduces many advanced collections based on developers' experience in application development works. Given below is a list of useful collections −
| Sr.No | Collection name & Description |
|---|---|
| 1 | Multiset
An extension to Set interface to allow duplicate elements. |
| 2 | Multimap
An extension to Map interface so that its keys can be mapped to multiple values at a time. |
| 3 | BiMap
An extension to Map interface to support inverse operations. |
| 4 | Table
Table represents a special map where two keys can be specified in combined fashion to refer to a single value. |