public void makeNewFiles {
 Date d = new Date();
 SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss dd-MM-yyyy");
 String ns = sdf.format(d);
 File ntf = File.createTempFile(ns, ".png", directory);
}

public void makeNewFiles {
 Date d = new Date();
 SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss dd-MM-yyyy");
 String ns = sdf.format(d);
 File n1 = new File(directory, pathToActualFile);
 File n2;

 if(n1.exists()) {
  n2 = new File(directory, ns + ".png");
  n2.createNewFile();
 }
}