Listing only files in directory [closed]

Question

I have a folder with following structure

C:/rootDir/

rootDir has following files

test1.xml
test2.xml
test3.xml
testDirectory <------- This is a subdirectory inside rootDir

I'm only interested in the XML files inside rootDir because if I use JDOM to read the XML, the following code also considers the files inside testDirectory and spits out content not allowed exception

File testDirectory = new File("C://rootDir//");
File[] files = testDirectory.listFiles();

How can I exclude the subdirectory while using the listFiles method? Will the following code work?

File testDirectory = new File("C://rootDir//");
File[] files = testDirectory.listFiles(new FilenameFilter() {
    
    @Override
    public boolean accept(File dir, String name) {
        return name.toLowerCase().endsWith(".xml");
    }
});

Answer 1

Use a FileFilter instead, as it will give you access to the actual file, then include a check for File#isFile

File testDirectory = new File("C://rootDir//");
File[] files = testDirectory.listFiles(new FileFilter() {
    @Override
    public boolean accept(File pathname) {
        String name = pathname.getName().toLowerCase();
        return name.endsWith(".xml") && pathname.isFile();
    }
});

Answer 2

Easier is to realise that the File object has an isDirectory method, which would seem as if it were written to answer this very question:

File testDirectory = new File("C://rootDir//");
File[] files = testDirectory.listFiles();
for (File file : files) {
    if ( (file.isDirectory() == false) && (file.getAbsolutePath().endsWith(".xml") ) {
       // do what you want
    }
}