Can not delete directory structure

Question

Hello,
i have tryed very much but no luch. i want to delete directory structory. directory may contain n no of files and n no of sub directories.
Please help me to correct this code. please give me solution it is very nessary in my project.
Veru much thans in advance
My code
private boolean deleteDomainStructure(File dir){
          if (dir.isDirectory()) {
     String[] children = dir.list();
     for (int i=0; i<children.length; i++) {
          boolean success = deleteDomainStructure(new File(dir, children));
     if (!success) {
     return true;
     return dir.delete();

Answer 1

Oh,
Okey, would you tell me how can i create directory with read only property off.
when i create a dir with File f = new File(path); file.mkdir(); it create a dir with read only.