java program to print-sub-files-and-sub-directories-in-a-directory

package com.usr.files;

import java.io.File;

public class ListFiles {

     public static void main(String[] args) {

           File rootDir=new File("E:\\songs");

           listAllFiles(rootDir);

     }

     private static void listAllFiles(File file) {

           if(file.isDirectory()){

                System.out.println("Directory Name is:"+file.getName());

                for(int i=0;i<file.listFiles().length;i++){

                     listAllFiles(file.listFiles()[i]);

                }

                System.out.println("File Name is:"+file.getName());

           }

     }

}