FYI, the limit of a String is the number of chars that fit in an int.
(String manages a char array internally), so 2^31 - 1 chars, approx.
2.1 billion. Remember... java chars are 2 bytes, so file size might
not translate equally depending on the file encoding....but it will
definitely handle several MBs :)
-jason
On Wed, Dec 08, 2004 at 04:06:46PM +0000, Alan McMorran wrote:
> Well I'm having functions generate strings of between 2-3Mb no problems at
> all (XML file for a 100-bus power network if you're wondering). Not sure
> what the limits to the size of a String is, but so far, not met it.
>
> Alan
>
>
> On 8/12/04 4:02 pm, "Michael Rasmussen" <email@hidden> wrote:
>
> > Using a string buffer may help you out. Also, I am not sure at all on
> > this so I am asking what the maximum size for a string is, A 512 KB
> > string seems big.
> > Michael
> >
> >
> > On Wed, 08 Dec 2004 15:38:33 +0000, Alan McMorran <email@hidden> wrote:
> >> Since I seem to have gotten into the bad habit of replying to my own
> >> emails...
> >>
> >>
> >>
> >>> Then put the string into a file, but the time taken increased exponentially
> >>> as the number of objects increased. When I changed it to:
> >>>
> >>> PrintWriter fileOutput = new PrintWriter(new FileWriter(new
> >>> File("outputFile"));
> >>>
> >>> For (int I=0; I<objects.length; I++){
> >>> fileOutput.println(objects[I].outputXML());
> >>> }
> >>>
> >>> I know it's not an exact solution, and puts the output into a file rather
> >>> than to a variable, but that's because I'm using a FileWriter for my
> >>> implementation, and I'm sure there are other ways to use a PrintWriter
> >>> rather than outputting to a file that would solve your problem.
> >>
> >> You can do:
> >>
> >> StringWriter stringOutput = new StringWriter();
> >> PrintWriter printOutput = new PrintWriter(stringOutput);
> >> For (int I=0; I<objects.length; I++){
> >> printOutput.println(objects[I].outputXML());
> >> }
> >> printOutput.close();
> >>
> >> Return stringOutput.toString();
> >>
> >> And that should return a String and doesn't seem to have the bottlenecks you
> >> get when doing += on a String object.
> >>
> >> Hope that helps.
> >>
> >> Alan
> >>
> >>
> >>
> >>
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