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Map<Integer, String> or String[] ?

Vishal Srivastav
Ranch Hand

Joined: Nov 29, 2008
Posts: 46

Hi Friends,

I am creating a Java EE client where I need to make a call to a node (js) server to get the response. So I made a single class through which requests are made to node server.
Everytime I get a response, I need to send back the response code and the response itself. So I thought of creating a String array which would contain the response code and the response.

Here is my class:

But I am not convinced by creating too much string objects which would cause performance issues. So I thought of creating a Map<Integer, String> which would send back the response code and the response.

But again, creating a map with integer and checking everytime the response code creates overhead of boxing and unboxing of Integer object, which again could result in performance.

Which one should I use? Or is there any better alternative out of it?

Vishal Srivastava, Software Engineer (Android), Paradigm Creatives
Claude Moore
Ranch Hand

Joined: Jun 24, 2005
Posts: 723

As from your code excerpt, I see that you'll send back for each response exactly two string values. I think that with so few data to be sent, performance overhead should be negligible; I just only guess that from a JSON's perspective, handling string arrays instead of maps would be more efficient. But it's just a guess.
I agree. Here's the link:
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