user2260218
Reputation:
When would I ever not use a hashmap?
Is there anytime when using a hashmap isn't definitely the way to go? In general, it seems like hashmaps out do trees, linked lists, and the like. Is there ever a time to not use a hash?
Upvotes: 3
Views: 1846
Answers (1)
Elliott Frisch
Reputation: 201477
If all of your object keys have the same hashCode, or you don't even have some kind of key, or you have null keys, or your algorithm or program doesn't require a hashmap. For example, how would you implement a graph with a hashmap? How about a stack? A set?
Upvotes: 3
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