public ArrayList<List<String>> toList() {
		ArrayList<List<String>> lists = new ArrayList<List<String>>(size);
		for(int i=0;i<size;i++){
			lists.add(null);
		}
		toList(lists);		
		return lists;
	}
public ArrayList < List < String > > toList ( ) { ArrayList < List < String > > lists = new ArrayList < List < String > > ( size ) ; for ( int i = 0 ; i < size ; i ++ ) { lists . add ( null ) ; } toList ( lists ) ; return lists ; }
@return