Florian Lindauer <[EMAIL PROTECTED]> writes:
> I was not so aware that String-concatenation is so expensive,
> i.e. that it is implicitly done by converting to StringBuffer(?).
String in Java are immutable, so every time you concatentate two
Strings, you have *three* String object in memory at the peak. A
StringBuffer is roughly analogous to a dynamically resizable C char*
buffer, much more efficient than immutable Strings.
String concatentation in non-loop, non-branching situations (i.e. s +
"foo") is generally implicitly converted into StringBuffer calls by
a Java compiler.
Daniel
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