While loop not breaking?

Question

I'm writing a parser for some text files.
My setup looks like so:
public void parseFile(String fileNameIn) throws IOException{
        BufferedReader br = new BufferedReader(
                new FileReader(fileNameIn));
        String line = null;
        line = br.readLine();
        while(line != null){
            //do a bunch of stuff
            line = br.readLine();
}I hit a line that == null when I am parsing and for some reason it is not breaking out of the while loop? I have no idea why.

Answer 1

Sch104 wrote:
I hit a line that == null when I am parsingNo, you don't. That condition causes control to exit from the loop when it reaches the end of the file. A line of text can't be null. Perhaps it might contain zero characters, or only white space, but that doesn't make it null. If you want to break out of the loop when you reach an empty line, you'll have to write a test for an empty line.
(Don't worry about what ibanezplayer85 said. Your code is perfectly good for processing a text file, it's equivalent to what he/she posted. I think your version is easier to understand, but you will very frequently encounter his/her version in code so it doesn't hurt to understand it, though.)