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I am trying to create a trigram model using LinkedHashMap> where Entry is the entry of last inputed bigram (whose structure is: LinkedHashMap

Now the problem is, being a map it does not store multiple keys (overwrites the existing key-value pair with new key-value pair for existing key).

I am not sure whether a multimap will be useful for this or not? If so, how?

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  • I am not sure of your requirement but are you sure that a Map is the best fit for the job ? If I get what you try to do i'll try to approach it by creating a trigramm object containing three characters (or a bigramm and a char). Commented Feb 24, 2013 at 16:34
  • Issue resolved. Created a bigram obj, and used a LinkedHashMap<String,bigramobj>.... Commented Feb 24, 2013 at 20:25
  • Shouldn't a char be more appropriate than String ? Commented Feb 24, 2013 at 22:55

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Every collections that implements Map interface keeps it's keys in Set implementation. Set can not keep multiple values.

Multimap is just a Map<Key, Collection<Value>>. It allows to keep multiple values under one key.

Read more about Maps.

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