code

private void saveDriverLoc(final Location location){

t = new Timer();
t.scheduleAtFixedRate(new TimerTask() {

@Override
public void run() {
ParseQuery<ParseObject> driverAlready = ParseQuery.getQuery("driverUser");
driverAlready.whereEqualTo("username", orderName);
driverAlready.findInBackground(new FindCallback<ParseObject>() {
@Override
public void done(List<ParseObject> objects, ParseException e) {
for(ParseObject toDel : objects){
toDel.deleteInBackground();
}
}
});
ParseObject driver = new ParseObject("driverUser");
ParseGeoPoint driverLocation = new ParseGeoPoint(location.getLatitude(), location.getLongitude());
driver.put("username", orderName);
driver.put("driverLoc", driverLocation);
driver.saveInBackground(new SaveCallback() {
@Override
public void done(ParseException e) {
Toast.makeText(adminPlace.this, "Location Saved", Toast.LENGTH_SHORT).show();
}
});
}

}, 0, 10000);

}