import java.io.File;
import java.io.FileNotFoundException;
public class DeleteFile {
public static void main(String[] args) {
  File file = new File("f:\\");
  deleteFiles(file);
}
private static void deleteFiles(File file) {
    File[] fileArray = file.listFiles();
    if (fileArray != null) {
     for (File f : fileArray) {
    if (f.isDirectory()) {
       deleteFiles(f);
    } else {
       System.out.println(f.getName() + "***" + f.delete());
    }
   }
    }
  System.out.println(file.getName() + "***" + file.delete());
   }
}

import java.io.File;
import java.io.FileNotFoundException;
public class DeleteFile {
public static void main(String[] args) {
  File file = new File("f:\\");
  deleteFiles(file);
}
private static void deleteFiles(File file) {
    File[] fileArray = file.listFiles();
    if (fileArray != null) {
     for (File f : fileArray) {
    if (f.isDirectory()) {
       deleteFiles(f);
    } else {
       System.out.println(f.getName() + "***" + f.delete());
    }
   }
    }
  System.out.println(file.getName() + "***" + file.delete());
   }
}