JAVA列出某文件夹下的所有文件

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());

            }
        }
    }
}