> from the top of my head you may have something like this:
>
> "aaa" + "bbb" -> "aaabbb"
Guaranteed by the JLS.
> "aaa" + "bbb" + z -> new StringBuffer("aaabbb").append(z).toString()
Yup, I think that's guaranteed too, but it depends on precedence order.
> "aaa" + "bbb" + z + "ccc" -> new
> StringBuffer("aaa").append("bbb").append(z).append("ccc").toString()
If the previous one is guaranteed, this should be:
new StringBuffer ("aaabbb").append(z).append ("ccc").toString();
Certainly that's the case with:
("aaa"+"bbb")+z+"ccc" - I can never remember the Java precedence order, but I
believe they're equivalent.
> I also remember that in some cases one compiler may use the empty
> StringBuffer ctor instead of the String one.
Yup - that's left up to the compiler.
(A really good compiler would work out some kind of reasonable guess at a
buffer size too, but I don't know of any that do that.)
Jon
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