Cycling 74 » Topic: Looking for a flexible data structure. Hesitating between Hashmap and others … http://cycling74.com/forums/topic/looking-for-a-flexible-data-structure-hesitating-between-hashmap-and-others/feed Wed, 19 Jun 2013 12:35:32 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/looking-for-a-flexible-data-structure-hesitating-between-hashmap-and-others/#post-56529 <![CDATA[Looking for a flexible data structure. Hesitating between Hashmap and others …]]> http://cycling74.com/forums/topic/looking-for-a-flexible-data-structure-hesitating-between-hashmap-and-others/#post-56529 Thu, 31 May 2012 08:13:30 +0000 Julien Bayle Hi there,
I’d need a JAVA equivalent of C++ Map.
I don’t care about the sort/order in the structure.
I just need to retrieve easily objects or values stored by using an ID.

I have to able to remove stuff too without letting my structure increasing to the infinite..

any suggestions ?

]]> http://cycling74.com/forums/topic/looking-for-a-flexible-data-structure-hesitating-between-hashmap-and-others/#post-202716 <![CDATA[Re: Looking for a flexible data structure. Hesitating between Hashmap and others …]]> http://cycling74.com/forums/topic/looking-for-a-flexible-data-structure-hesitating-between-hashmap-and-others/#post-202716 Thu, 31 May 2012 11:12:18 +0000 Julien Bayle Sysex answered:

Hi,

I don’t know what you really want to archive but why using a Hashmap? You could put the reference to the MaxBox-Instance in myObject as field and store the instances of myObject in something that implements the List Interface, like ArrayMap. In case of a HashMap what would be your key (I guess the values will be the myObjects) ?.

What would be the benefits to use ArrayMap over HashMap ?
Indeed, I can store the ref inside the object itself.
Actually the key was a number incremented each time I created on MaxBox and, this is an important value because I’m instantiating my MaxBox (basically pre-made abstractions) with that value as argument, propagating inside the abstraction by #1 ..

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