Java遍历文件夹

public static void getFile(String path,String suffix) {
File file = new File(path);
File[] files = file.listFiles();
for (int i = 0; files != null && i < files.length; i++) {
if (files[i].isDirectory()) {
getFile(files[i].getPath(),suffix);
} else {
if (files[i].getName().endsWith(suffix)) {
System.out.println(files[i].getName());
}
}
}
}

public static void main(String[] args) {
getFile("D://",".txt");
}