Possible Duplicate:
StringBuilder and StringBuffer in Java
Criteria to choose among StringBuffer and StringBuilder
Possible Duplicate: StringBuilder and StringBuffer in Java Criteria to choose among StringBuffer and StringBuilder
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Possible Duplicate:
StringBuilder and StringBuffer in Java
Criteria to choose among StringBuffer and StringBuilder
If you’re definitely using Java 5 or higher, and you definitely don’t need to share the object between threads (I can’t remember ever needing to do so),
StringBuilderis a better bet.Basically you should almost always use
StringBuilderwhen you can, to avoid pointless synchronization. Admittedly the way most VMs handle uncontended synchronization is extremely efficient, but if you don’t need it in the first place…