StriingBuffer is synchronized, it locks a thread every time you call it. StringBuilder is the newer Java 1.6 API, and it can run in its own thread. All three: String, StringBuffer, StringBuilder are Objects, they have methods.

int sLen = s.length()
int sbLen = sb.length();
int stbldrLen = stb.length();

The advantage of StringBuilder is it is faster in execution speed than...
String s = "r" + "u" + "n";
s += " Spot"
s += " run\n";

Java1.6+ uses StringBuilder internally when you call += on a String. But, each call on += is another String without StringBuilder and thus another 40 bytes minimum that never goes away.
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property management system
Retractable Banner Stands