Tell the container where you can put such values:
- key1 value1
- key1 value2
- key1 value3
- key2 value4
- key2 value5
- key3 value6
That is, so that one key can store many elements in it.
Nicolas Chabanovsky ♦
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shade88 shade88
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3 answers
There is such a thing in Google Guava, MultiMap
Mage mage
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There is no multimap in the standard Java library (which is in STL C ++). The article describes how you can do this yourself.
skegg skegg
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Well, you can, for example, do this - implement a class with the key and value fields. Further, just in any necessary (or convenient) container you push objects of this class.
Stas0n stas0n
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Map<KeyType, List<Value>>? - jmu