小编Luc*_*cky的帖子

public boolean accept(File directory, String fileName) {
    boolean fileOK = true;

    if (name != null) {
        fileOK &= fileName.startsWith(name);
    }

    if (pattern != null) {
        fileOK &= Pattern.matches(regex, fileName);
    }

    if (extension != null) {
        fileOK &= fileName.endsWith('.' + extension);
    }
    return fileOK;
}