Returns the number of one-bits in the two's complement binary
representation of the specified {@code long} value. This function is
sometimes referred to as the <i>population count</i>.
@param i the value whose bits are to be counted
@return the number of one-bits in the two's complement binary
representation of the specified {@code long} value.
Returns the number of one-bits in the two's complement binary representation of the specified {@code long} value. This function is sometimes referred to as the <i>population count</i>.
@param i the value whose bits are to be counted @return the number of one-bits in the two's complement binary representation of the specified {@code long} value.