I am interested in using a Map that will contain unique keys and values. I also would like to have O(1) complexity for .containsKey() and .containsValue(). To me, it seems like a HashBiMap should be able to support this complexity because of the uniqueness of both the keys and values in the map and hashing. Is this a correct assumption?
Big-O of containsValue for Guava HashBiMap
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A PROPERLY IMPLEMENTED two-way
HashMap(In this case, aHashBiMap) indeed has a runtime complexity of O(1) forcontainsKeyandcontainsValue.