private int computeSize(Map<Integer,Integer[]> integerMap){
  int count=0;
  for (  Integer taxonId : integerMap.keySet()) {
    Integer value=integerMap.get(taxonId)[0];
    if (value != null)     count+=value;
  }
  return count;
}

private int computeSize ( Map < Integer , Integer [ ] > integerMap ) { int count = 0 ; for ( Integer taxonId : integerMap . keySet ( ) ) { Integer value = integerMap . get ( taxonId ) [ 0 ] ; if ( value != null ) count += value ; } return count ; }
compute the size of the classification
