StringBuffer vs. StringBuilder
Here’s a nice blog entry by Daniel Pietraru showing how StringBuilder is around 34% faster than StringBuffer for single threaded applications. Even includes bytecode analysis for plain String concatenation, something I’ve always been curious about.
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StringBuilder concat = new StringBuilder(BUFFSIZE); -
for (int i = 0; i < ITERATIONS; i++) { -
concat.append(i % 10); -
}

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