private void computeSumItemSizes() {
        for (int d = 0; d < nbDims; d++) {
            long sum = 0;
            for (int i = 0; i < iSizes[d].length; i++) {
                sum += iSizes[d][i];
            }
            this.sumISizes[d] = sum;
        }

    }
private void computeSumItemSizes ( ) { for ( int d = 0 ; d < nbDims ; d ++ ) { long sum = 0 ; for ( int i = 0 ; i < iSizes [ d ] . length ; i ++ ) { sum += iSizes [ d ] [ i ] ; } this . sumISizes [ d ] = sum ; } }
Compute the sum of the item sizes for each dimension.