JAVA File class-delete a folder with content

Package ioTest. io3;/** delete a folder with content: Delete the folder from the innermost point. It is recommended that you do not delete the folders useful on the hard disk. * method idea * loop + recursion */import java. io. file; public class RemoveDir {public static void main (String [] args) {// TODO Auto-generated method stubFile file File = new File ("F: \ removeDirTest "); removedir (file);} public static void removedir (File file) {File [] files = file. listFiles (); for (File f: files) {if (f. isDirectory () // recursively call {removedir (f);} else {f. delete () ;}// delete the file folder after all contents in the directory at the first level are deleted. delete ();}}