Probably because the API-Spec (http://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html#toString%28%29) says "..A new String object is allocated and initialized to contain the character sequence currently represented by this object..".
Regards, Volker On Thu, Feb 28, 2013 at 8:47 AM, Jan Ohlsen <jan.t.ohl...@gmail.com> wrote: > System.out.println( new StringBuilder().toString() == "" ); > -> "false" > > > Any reason for not returning the "" instance? > > > public String toString() { > return new String(value, 0, count); > } > > --> > > public String toString() { > return (count > 0) ? new String(value, 0, count) : ""; > } > > ?