How to save only zip files and remove other folders using java? -

here have folder(books)in have 3 sub folders named:sub1, sub2, sub3 , sub1 have 2 files, sub2 have 3 files, sub3 have 4 files. , sub1.zip,sub2.zip , sub3.zip. want keep zip files , delete sub1, sub2, sub3 folders of books. code i'm able delete inside files of sub1 folder, sub2, sub3 folders becoming empty, how can delete sub1,sub2 , sub3 folders.

public void savezipfiles(file destwithouaudio) throws ioexception {     file[] listoffiles = destwithouaudio.listfiles();     (file listoffile : listoffiles) {         if (listoffile.getname().endswith(".zip")) {         } else {             file folderinside = new file(listoffile.getabsolutepath());             file[] listoffilesinside = folderinside.listfiles();             (file listoffilesinside1 : listoffilesinside) {                 file deletefolder = new file(listoffilesinside1.getabsolutepath());                 //system.out.println(""+listoffilesinside[j]);                 recursivedelete(deletefolder);             }         }     } } 

recursivedelete method code is:

public static void recursivedelete(file file) throws ioexception {     if (file.isdirectory()) {         if (file.list().length == 0) {             file.delete();             system.out.println("directory deleted : " + file.getabsolutepath());         } else {             string files[] = file.list();             (string temp : files) {                 file filedelete = new file(file, temp);                 recursivedelete(filedelete);             }             if (file.list().length == 0) {                 file.delete();                 system.out.println("directory deleted : " + file.getabsolutepath());             }         }     } else {         file.delete();         system.out.println("file deleted : " + file.getabsolutepath());     } } 

after deleting files sub1,sub2,sub3 foldersii need delete sub1,sub2,sub3 folders.

where change code?

public void deletedir(file dir) {     if (dir.isdirectory()) {         string[] children = dir.list();         (int = 0; < children.length; i++) {             boolean success = deletedir(new file(dir, children[i]));             if (!success) {                 return false;             }         }     }      return dir.delete(); // directory empty , can deleted. } 

then, using

public void savezipfiles(file destwithouaudio) {      file[] deletion = destwithouaudio.listfiles(new filenamefilter() {          @override         public boolean accept(file dir, string name) {             return !name.endswith(".zip");         }      });     (file todelete : deletion) {         deletedir(todelete);     } } 

(using deleting folder java folder deletion)