Reading a line from a file

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ataanis@gmail.com - 04 May 2006 18:20 GMT

Hi to all, I'm trying to read from a file, line by line, and parse out
the data, by using the line.split(" ") function, and I have a file that
has 8 entries total per line, which means that it supposed to read up
to , array[7], but for some reason, when I run it , it says array
outofboundaries. The only thing here that is to notice, is that the
value at 7 might be either a string or an empty string, can that be a
problem?
Thanks

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Martin Gerner - 04 May 2006 19:10 GMT

Could you please copy-paste your code so that we can look at it?

ataanis@gmail.com wrote in news:1146763242.632744.176950
@j73g2000cwa.googlegroups.com:

> Hi to all, I'm trying to read from a file, line by line, and parse out
> the data, by using the line.split(" ") function, and I have a file that
[quoted text clipped - 4 lines]
> problem?
> Thanks

Signature

Martin Gerner

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stocksami@earthlink.net - 04 May 2006 19:22 GMT

> Hi to all, I'm trying to read from a file, line by line, and parse out
> the data, by using the line.split(" ") function, and I have a file that
[quoted text clipped - 4 lines]
> problem?
> Thanks

Try using the trim method of the readLine before using split.

example:

String s = in.readLine.trim();

where in is a BufferedReader

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stocksami@earthlink.net - 04 May 2006 19:25 GMT

stocks...@earthlink.net wrote:

> > Hi to all, I'm trying to read from a file, line by line, and parse out
> > the data, by using the line.split(" ") function, and I have a file that
[quoted text clipped - 12 lines]
>
> where in is a BufferedReader

Whoops,

should have been
String s = in.readLine().trim();

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Eric Sosman - 04 May 2006 20:00 GMT

ataanis@gmail.com wrote On 05/04/06 13:20,:

> Hi to all, I'm trying to read from a file, line by line, and parse out
> the data, by using the line.split(" ") function, and I have a file that
[quoted text clipped - 3 lines]
> value at 7 might be either a string or an empty string, can that be a
> problem?

Yes: You are using a form of split() that discards
trailing empty strings; see the Javadoc. There's a two-
argument split() method that can be used to retain the
empty trailers; again, see the Javadoc.

Signature

Eric.Sosman@sun.com

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Bruce Lee - 04 May 2006 20:10 GMT

> Hi to all, I'm trying to read from a file, line by line, and parse out
> the data, by using the line.split(" ") function, and I have a file that
[quoted text clipped - 4 lines]
> problem?
> Thanks

yep. an empty line will not be added

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Bruce Lee - 04 May 2006 20:11 GMT

> Hi to all, I'm trying to read from a file, line by line, and parse out
> the data, by using the line.split(" ") function, and I have a file that
[quoted text clipped - 4 lines]
> problem?
> Thanks

that should be empty string will not be added

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Reading a line from a file

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