question: number of bits concode_field_sep long[] data concode_elem_sep long bitCount concode_field_sep void writeTo concode_elem_sep boolean set concode_elem_sep BitArray readFrom concode_elem_sep int hashCode concode_elem_sep boolean get concode_elem_sep void putAll concode_elem_sep boolean equals concode_elem_sep int numWords concode_elem_sep long cardinality
target: long function ( ) { return ( long ) data . length * Long . SIZE ; }