Re: Using char[] as key in a HashMap

On 2008.01.30., at 12:45, Endre Stølsvik wrote:

> However, if you've ended up with the key Strings by using
> substring(begin[, end]) on some longer String, you'll carry the  
> original
> length of the value-array with you.

But if you know this is the case, you can get rid of the original  
storage and have a string that uses the minimal sufficiently sized  
char[] using the String(String) constructor:

String s2 = new String(someHugeString.substring(10000000, 10000003));

s2 will have an exactly 3-long underlying char[].

Attila.

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