java 遍历文件

import java.io.File;public class TestFile {    public static void main(String[] args){        File myfile = new File("E:/");        print(myfile);    }    public static void print(File f){        if(f!=null){            if(f.isDirectory()){                File[] fl = f.listFiles();                if(fl!=null) {                    for (File ff : fl) {                        print(ff);                    }                }            }            else{                System.out.println(f);            }        }    }}