Well there is a bug. One declaration is missing...
Try add your routine:
(defn hash-map2
([ keyvals]
(. clojure.lang.PersistentHashMap (create keyvals))))
Then call
(hash-map2 (HashMap. { "tom" "boom" } ) )
Wiadomość napisana przez Alex Osborne w dniu 2009-11-09, o godz. 23:55:
>
> Michael Jaaka wrote:
>> How to convert HashMap<String, String> to Clojure map, sorted-map,
>> tree-map
>>
>> How far I'm able only to do it with
>>
>> (let [a (HashMap. { "abc" "def"}) ]
>> (zipmap (keys a) (vals a)))
>>
>> Note that HashMap. { ... } is here only as example, cause in fact it
>> is a result from Java method call.
>>
>> What with sorted-map, tree-map and any other types (set, arrays,
>> double dimension arrays)?
>> Is there any brief tutorial showing how to convert any Complex Java
>> type to Clojure type
>> I want do that because I want my data structures immutable.
>
> (into {} (HashMap. {:b 2, :a 1}))
> => {:b 2, :a 1}
>
> (into (sorted-map) (HashMap. {:b 2, :a 1}))
> => {:a 1, :b 2}
>
> (into [] (to-array [1 2 3]))
> => [1 2 3]
>
> (into [] (ArrayList [1 2 3]))
> => [1 2 3]
>
> and so on...
>
> >
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