java简单列出文件夹下所有文件的方法

import Java.io.*;public class ListFiles {  private static String s = "";  private static BufferedReader in = new BufferedReader(      new InputStreamReader(System.in));  public static void main(String[] args) {    try {      s = in.readLine();      getFileList(s);      in.close();    } catch (IOException e) {      e.printStackTrace();    }  }  public static void getFileList(String directory) {    File f = new File(directory);    File[] files = f.listFiles();    for (int i = 0; i < files.length; i++) {      if (files[i].isFile()) {        System.out.println("文件：" + files[i]);      } else {        System.out.println("目录：" + files[i]);        // System.out.println("目录绝对地址：" + files[i].getAbsolutePath());        getFileList(files[i].getAbsolutePath());      }    }  }}