this whole thread is pretty OT, so i won't let that stop me from pointing out...
You aren't garunteed to get the behavior you are seeing
from every implimentation of Java -- the JLS only
requires that string concatination must be implimented using
a StringBuffer, not that multiple string concatenations
must be optimized into a single StringBuffer.
ie...
this...
String foo = "bar" + "baz";
is garunteed to be equivilent to this...
StringBuffer tmp = new StringBuffer("bar");
tmp.append("baz");
String foo = tmp.toString();
But this...
String wb = "yakko" + "wakko" + "dot";
might be implimented as...
StringBuffer tmp1 = new StringBuffer("yakko");
tmp1.append("wakko");
String tmp2 = tmp1.toString();
StringBuffer tmp3 = new StringBuffer(tmp2);
tmp3.append("dot");
String wb = tmp3.toString();
You might want to check out
JDC TechTip 2002-03-05
particularly it's discussion of "a statement found in the Java Language Specification section 15.18.1.2"
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