if (information.length==1 && information[0].equals("")) return null;
    private static int[] createIntArray(StringBuffer data) {        if (data.length()==0) return null;        String [] information=data.toString().trim().split(" ");        int[] indexes=new int[information.length];        for (int i=0;i<indexes.length;i++){            indexes[i]=Integer.parseInt(information[i]);        }        return indexes;    }