If you're really just starting with java, then it might be useful to
read a tutorial or watch a youtube video. Youtube has more than just
cute cat videos!
https://www.youtube.com/results?search_query=java+beginner+tutorial
Tilman
Am 29.12.2014 um 14:25 schrieb A.M. Sabuncu:
Thanks Gilad. I am in fact setting up Eclipse to attach the source for the
library. Another learning curve though! :)
On Mon, Dec 29, 2014 at 3:22 PM, Gilad Denneboom <[email protected]>
wrote:
Yes, that's correct. You can see it by debugging the code and looking at
the memory references for each variable. They should be the same.
On Mon, Dec 29, 2014 at 2:08 PM, A.M. Sabuncu <[email protected]> wrote:
Gilad, thank you so much. I am new to Java and have been researching
pass-by-ref/value topics in Java for the last hour! Essentially, the
external variable output is a pointer to the same object as the object
outputStream, is that correct? Thanks again.
On Mon, Dec 29, 2014 at 2:57 PM, Gilad Denneboom <
[email protected]>
wrote:
All of these variables are references to the same object, so when the
contents of the object are edited inside the writeText function the
value
pointed at by the external variable (*outputStream* in getText) are
changed
as well.
In other words, when *outputStream *is assigned to *output *(inside
writeText) all it says is for that variable to point to the same object
reference. It does not create a copy of the variable under a new name.
On Mon, Dec 29, 2014 at 1:43 PM, A.M. Sabuncu <[email protected]>
wrote:
I am reading the PDFTextStripper.java code and I am stuck trying to
understand a mechanism used within the code.
Following is the getText() method:
public String getText( PDDocument doc ) throws IOException
{
StringWriter outputStream = new StringWriter();
writeText( doc, outputStream );
return outputStream.toString();
}
As you can see, getText() calls writeText() with an outputStream. In
writeText(), the global variable "Writer output" is set to
outputStream:
output = outputStream;
But there is no code that sets outputStream back to output.
Nevertheless,
outputStream.toString() (in getText) returns the extracted text.
I know I am missing something here, and any help will be appreciated.
If
you think I should post this to the developers' list, please let me
know.
Thanks so much.
PS: I am using the latest version of PDFBox 1.8.8.
