src/java/org/apache/cassandra/utils/EstimatedHistogram.java
/**
     * @return the total number of non-zero values
     */
@return the total number of non-zero values
@return the total number of non - zero values
public long count()
    {
       long sum = 0L;
       for (int i = 0; i < buckets.length(); i++) 
           sum += buckets.get(i);
       return sum;
    }
public long count ( ) { long sum = 0L ; for ( int i = 0 ; i < buckets . length ( ) ; i ++ ) sum += buckets . get ( i ) ; return sum ; }
@return the total number of non-zero values
@return the total number of non - zero values