Can you write to a file from a vector??

[nemadrias]

How do I write to a file (using a FileWriter) from a filled vector??

I.E. Why can't I do this??

for (i = 0; i < myVector.size(); i++){
myWriter.write(myVector.elementAt(i));
myWriter.flush();
myWriter.close();
}

Thanks,
Steve

 

[Oliver Wong]

How do I write to a file (using a FileWriter) from a filled vector??

I.E. Why can't I do this??

for (i = 0; i < myVector.size(); i++){
myWriter.write(myVector.elementAt(i));
myWriter.flush();
myWriter.close();
}

You (sometimes) can't write to a writer after you've closed it.

- Oliver

 

[Matt Humphrey]

How do I write to a file (using a FileWriter) from a filled vector??

I.E. Why can't I do this??

for (i = 0; i < myVector.size(); i++){
myWriter.write(myVector.elementAt(i));
myWriter.flush();
myWriter.close();
}

First, because you're closing the file after the first element. Move the
close statement to outside of the loop. Second, because write writes out a
String (or char [] or int). You must convert whatever the object is at
myVector.elementAt (i) to a String. Minimally you can use toString (), or
if it's a vector of strings you can cast to String but otherwise it should
be something intellligible. What are you expecting it to output?

Matt Humphrey (e-mail address removed) http://www.iviz.com/

 

[nemadrias]

Thanks to both of you -
I don't know how I moved the .close() statement into the loop, but
somehow overlooked it. I did a toString() and that worked fine.
Thanks alot Matt,
Steve

How do I write to a file (using a FileWriter) from a filled vector??

I.E. Why can't I do this??

for (i = 0; i < myVector.size(); i++){
myWriter.write(myVector.elementAt(i));
myWriter.flush();
myWriter.close();
}

First, because you're closing the file after the first element. Move the
close statement to outside of the loop. Second, because write writes out a
String (or char [] or int). You must convert whatever the object is at
myVector.elementAt (i) to a String. Minimally you can use toString (), or
if it's a vector of strings you can cast to String but otherwise it should
be something intellligible. What are you expecting it to output?

Matt Humphrey (e-mail address removed) http://www.iviz.com/

 

[Hendrik Maryns]

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nemadrias schreef:

Thanks to both of you -
I don't know how I moved the .close() statement into the loop, but
somehow overlooked it. I did a toString() and that worked fine.

Please don’t top-post.

I’d move flush outside the loop too. No need to have that much I/O.

H.

- --
Hendrik Maryns

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