import java.io.File;
class FileUtils {
static public boolean deleteDirectory(File path) {
if (path.exists()) {
File[] files = path.listFiles();
for (int i = 0; i < files.length; i++) {
if (files[i].isDirectory()) {
deleteDirectory(files[i]);
}
else {
files[i].delete();
}
}
}
return (path.delete());
}
static void deleteIfExists(File file) {
if (file != null) {
if (file.exists() == true) {
file.delete();
}
}
}
}