you are right the problem was with "+=" not with the simple "+"
Simone ------------------------------------------------------- Ing. Simone Giannecchini GeoSolutions S.A.S. Founder - Software Engineer Via Carignoni 51 55041 Camaiore (LU) Italy phone: +39 0584983027 fax: +39 0584983027 mob: +39 333 8128928 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.linkedin.com/in/simonegiannecchini http://twitter.com/simogeo ------------------------------------------------------- On Fri, Jul 2, 2010 at 1:02 PM, Andrea Aime <aa...@opengeo.org> wrote: > Simone Giannecchini ha scritto: >> string1 + string2 + string3 >> >> becomes >> >> temp=new StringBuffer(string1).append(string2) >> temp2= new StringBuffer(temp),apend(string3) >> >> result = temp2.toString(); >> >> and this was true until the last time I checked, which was a while >> ago, but It was at least using Java 5. > > My javap dump seems to suggest otherwise. I'm using Java 5 as well. > > Cheers > Andrea > >>> Compiled from "Concatenate.java" >>> public class Concatenate extends java.lang.Object{ >>> public Concatenate(); >>> Code: >>> 0: aload_0 >>> 1: invokespecial #8; //Method java/lang/Object."<init>":()V >>> 4: return >>> >>> public static void main(java.lang.String[]); >>> Code: >>> 0: new #16; //class java/lang/StringBuilder >>> 3: dup >>> 4: ldc #18; //String abc >>> 6: invokespecial #20; //Method >>> java/lang/StringBuilder."<init>":(Ljava/lang/String;)V >>> 9: invokestatic #23; //Method java/lang/Math.random:()D >>> 12: invokevirtual #29; //Method >>> java/lang/StringBuilder.append:(D)Ljava/lang/StringBuilder; >>> 15: ldc #33; //String def >>> 17: invokevirtual #35; //Method >>> java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder; >>> 20: invokevirtual #38; //Method >>> java/lang/StringBuilder.toString:()Ljava/lang/String; >>> 23: astore_1 >>> 24: new #16; //class java/lang/StringBuilder >>> 27: dup >>> 28: ldc #42; //String abc >>> 30: invokespecial #20; //Method >>> java/lang/StringBuilder."<init>":(Ljava/lang/String;)V >>> 33: invokestatic #23; //Method java/lang/Math.random:()D >>> 36: invokevirtual #29; //Method >>> java/lang/StringBuilder.append:(D)Ljava/lang/StringBuilder; >>> 39: ldc #44; //String def >>> 41: invokevirtual #35; //Method >>> java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder; >>> 44: invokevirtual #38; //Method >>> java/lang/StringBuilder.toString:()Ljava/lang/String; >>> 47: astore_2 >>> 48: return >>> >>> } >>> > > > -- > Andrea Aime > OpenGeo - http://opengeo.org > Expert service straight from the developers. > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Sprint > What will you do first with EVO, the first 4G phone? > Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first > _______________________________________________ > Geotools-devel mailing list > Geotools-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geotools-devel > ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Geotools-devel mailing list Geotools-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-devel
