HashMap with multiple values under the same key

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Is it possible to implement a HashMap with one key and two values. Just as HashMap?
Dec 13, 2018 in Java by Daisy
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1 answer to this question.

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  1. Use a map that has a list as the value. Map<KeyType, List<ValueType>>
  2. Create a new wrapper class and place instances of this wrapper in the map. Map<KeyType, WrapperType>
  3. Use a tuple like class (saves creating lots of wrappers). Map<KeyType, Tuple<Value1Type, Value2Type>>
  4. Use mulitple maps side-by-side
answered Dec 13, 2018 by Sushmita
• 6,870 points

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