Jtextarea read line by line

[Mike Phillip]

how can I read line by line the content of a Jtextarea?




thanks

[Rob Spoor]

One idea is to split the getText() results by line breaks, using the regular String.split() method.

[Brian Cole]

Originally posted by Mike Phillip:
how can I read line by line the content of a Jtextarea?

It depends on what you mean by "read". The content is already
in RAM, so there's not really i/o involved. If you just want
to process each line you can do something like this:

String[] lines = yourTextArea.getText().split("\\n");

If the content is large and you're worried about essentially
doubling its RAM footprint, then you might want to look into
yourTextArea.getDocument().getText(offset, length, yourSegment).
That doesn't help you go line by line, but it can minimize
copying the text.

[Mike Phillip]

thanks on post guys.

I just resolved it. I needed to put it in a file, so I did this:

String ln = System.getProperty("line.separator");
String text = myJtxa.getText() ;
String as = text.replaceAll("\n", ln);
buf.write(as.toString(),0, as.length());
buf.close();


works


thanks

[Brian Cole]

Originally posted by Mike Phillip:
I needed to put it in a file, so I did this:

String ln = System.getProperty("line.separator");
String text = myJtxa.getText() ;
String as = text.replaceAll("\n", ln);
buf.write(as.toString(),0, as.length());
buf.close();


works

It would have been simpler to just call myJtxa.write(...).
It even takes care of line.separator for you.

I would have mentioned it earlier had you mentioned
anything about writing files in your original query.

[Daniele Silvi]

Brian Cole wrote:

String[] lines = yourTextArea.getText().split("\\n");

And then I just did

for(int i = 0 ; i< lines.length; i++)
			printwriter.println( lines[i]);

Worked like a charm !!!