At one place i have to use a map with many values mapped to a single key, so i was wondering whether there is any significant performance distinction between using HashMap of key, list and MultiMap of key , values in java.
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At one place i have to use a map with many values mapped to a single key, so i was wondering whether there is any significant performance distinction between using HashMap of key, list and MultiMap of key , values in java.
You can try it but I doubt there is much difference as it does much the same thing.
IMHO The advantage is simpler/clearer code which is usually more important than performance.