public void resetCircleColors(){
  if (mCircleColors == null) {
    mCircleColors=new ArrayList<>();
  }
  mCircleColors.clear();
}

public void resetCircleColors ( ) { if ( mCircleColors == null ) { mCircleColors = new ArrayList < > ( ) ; } mCircleColors . clear ( ) ; }
resets the circle - colors array and creates a new one
