End of file

[Reine]

Hey guys.
So my programme is supposed to read characthers from a text file, but how do I end it? So my sequence of numbers ends with 0 and I want that to be enough to end the reading. But the programme prints "end of file while reading from file "data.txt""

any idea whats going on?

edit: I have a few negative numbers, but I expect that the counter will also count the - as a character, how can i stop it from doing that?

thanks! :)

do
{
x = inName.readChar();
counter = counter + 1;
} while ( x != 0);


System.out.println (counter);
}
}

[Iron Lion]

What class are you using for inName? If it's a Scanner, for example, you can do:

while (inName.hasNext() && inName.nextInt != 0) { ... }

[Reine]

oh i'm not using scanner, just the regular public class. could you write it in that form by any chance?

[Iron Lion]

Which regular public class? Look at the API for whichever class it is that inName is an instance of.

[Reine]

Only been doing this for a few weeks, but I think it's an I/O class :)

[Norm]

Could you post the statement where the definition for the inName variable and also the all the import statements from the front of your program.?

[Reine]

Hope this is what you're looking for!
import java.io.*;
import java.util.*;


public class TextFile {

[Norm]

That's the import statements. Now the statement where inName is defined.

[Reine]

Could this be it?

TextFile inName = new TextFile (true, "data.txt");

[Norm]

Yes, that is it.
It looks like the code for the readChar() method is in your program. You should be able to look at it to see where
the programme prints "end of file while reading from file "data.txt""
Use your editor's Find or Search to look for "end of file while".

[Reine]

Ah right I deleted it and it worked, Is that OK? Also, would you happen to know how to skip the - character for the negative numbers in my text file?

[Norm]

Is that OK?

Where did you get the code? Why are you using it instead of using one of the Java SE classes?

how to skip the - character for the negative numbers

What is the problem? Putting a - in front of a number is the way to indicate that the number is negative.

[Reine]

Well my teacher gave us a file with all these codes and he never explained to us why we're not using other classes. But the problem lies in the fact that my program is supposed to state the number of negative numbers (all single digit) there are in my text file. My counter, however, counts the - sign as a character. If finding a way to skip that is beyond beginner's level I'll just assume it's ok to divide the number of characters by 2

[Reine]

Nevermind, I found a solution. Thanks for all your help tho :)