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Thread: [java] map

  1. #1
    Join Date
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    Default [java] map

    Hello,
    I need a structure like this:
    Qt Code:
    1. Hashtable<String, Vector<String>> _examples = new Hashtable<String, Vector<String>>();
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    but I need to insert "record" with duplicate key. HashTable don't permit this.
    Is there any other structure? Either a way to solve?

    thanks,
    Regards

  2. #2
    Join Date
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    Default Re: [java] map

    there are several possibilities:
    i) there are MultiMap classes available for Java (-> google)
    ii) just use a list: i.e. instead of MutltiMap<Key,Value> use Hashtable<Key,IList<Value>>
    (that is not the same as now you can have empty lists as a key's value...;
    to be honest the second possibility is close to "roll your own MultiMap")

    HTH

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