2 dimensional-Array or Map

[Rizwan]

which one is faster? I have a scenario where i can use either one. which one
is better performance wise?

Thanks

 

[Rizwan]

its a String array. the Map will also contain Strings as key and value.

 

[Ann]

which one is faster? I have a scenario where i can use either one. which one
is better performance wise?

Thanks

If it is very small, array is faster, if it is very big, map is faster.

 

[Michael Borgwardt]

If it is very small, array is faster, if it is very big, map is faster.

Why do you think so?

Array access is ALWAYS much faster than accessing a Map. Unless you're
talking about a case where the array is sparsely populated and gets so
big that it has to be swapped out.

 

[Chris Uppal]

Why do you think so?

I suspect Rizwan (the OP) was considering a Map<String, String> vs. a 2-column
array of Strings holding keys in one column and values in the other, and using
a linear search. I assume that Ann was thinking the same thing, certainly her
answer was completely correct for that case.

-- chris