Listing all files in a folder [java]

From here.

public File[] listf(String directoryName) {

    // .............list file
    File directory = new File(directoryName);

    // get all the files from a directory
    File[] fList = directory.listFiles(); 

    for (File file : fList) {
        if (file.isFile()) {
            System.out.println(file.getAbsolutePath());
        } else if (file.isDirectory()) {
            listf(file.getAbsolutePath());
        }
    }
    System.out.println(fList);
    return fList;
}         
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