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Bi-directional Map

 
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Hi

Please help me in solving this problem

I have a map which stores a key pair value. key is a integer and the corresponding value is an array of strings. I want to implement a bi-directional map in such a way that if I pass any one value in an array, it should return me the corresponding integer value.

If someone can provide some sample code, please do..

I have tried the BidiMap in apache commons-collections, but didn't help
 
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Duplicates a post in medium.
 
Don't get me started about those stupid light bulbs.
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