Re: .length undefined?

From:

Merciadri Luca <Luca.Merciadri@student.ulg.ac.be>

Newsgroups:

comp.lang.java.help

Date:

Fri, 25 Mar 2011 15:35:48 +0100

Message-ID:

<8739mbz2rf.fsf@merciadriluca-station.MERCIADRILUCA>

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Fred <fred.l.kleinschmidt@boeing.com> writes:

On Mar 25, 6:51??am, Merciadri Luca <Luca.Mercia...@student.ulg.ac.be>
wrote:

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Hi,

I've got some code like this in a try block:

==
BufferedReader input_file = new BufferedReader(new FileReader(input_filename));
String curr_line;
int line_length_ref, k;

for (int i = 1; (curr_line = input_file.readLine()) != null; i++) {
?? ?? if (i == 1) {
?? ?? ?? ??line_length_ref = curr_line.length; // save the length of the first line of the file
?? ?? }
?? ?? else {
?? ?? ?? ?? ??if (curr_line.length != line_length_ref) {
?? ?? ?? ?? ?? ?? System.err.println("Input file must contain same number of columns through rows.");
?? ?? ?? ?? ?? ?? System.exit(1);
?? ?? ?? ?? ??}
?? ?? }}

==

However, I'm getting

==
cannot find symbol
symbol ??: variable length
==
for the curr_line.length calls. But isn't a .length attribute defined
for every String object?

For String instances, length is a method, not a variable:
curr_line.length()

Thanks. Sorry for the stupid mistake.

- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
- --

If it's worth doing, it's worth over-doing.
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