Question

I’m looping through a directory in Java, trying to read each of the files. The directory contains some svn files in it which deny access. I could test the file name and skip svn files, but this solution won’t be robust if I find other files with denied access. I tried this:

for(File f : dir.listFiles()){
if(f.canRead()){
    System.out.println("Trying " + f.getAbsolutePath());
    try{
        Scanner sc = new Scanner(f);
    }
    catch(IOException e){
        e.printStackTrace();
    }
    continue;
}
}

When I get to the .svn file, however, it doesn’t skip; I get this printout:

Trying C:\dir\.svn
java.io.FileNotFoundException: dir\.svn (Access is denied)

canRead(),canWrite(), and canExecute() all have the same problem.
Is there something besides canXXX() that I can use to skip denied access files?

Answer 1

.svn is a directory. It’s probably not something you can read with a Scanner.

Change your condition to this:

if(f.canRead() && !f.isDirectory())