public static BtcFormat getMicroInstance(int scale, int... groups) {
        return getInstance(MICROCOIN_SCALE, defaultLocale(), scale, boxAsList(groups));
    }
public static BtcFormat getMicroInstance ( int scale , int ... groups ) { return getInstance ( MICROCOIN_SCALE , defaultLocale ( ) , scale , boxAsList ( groups ) ) ; }
Return a new microcoin-denominated formatter with the specified fractional decimal
placing.  The returned object will format and parse values according to the default
locale, and will format the fractional part of numbers with the given minimum number of
fractional decimal places.  Optionally, repeating integer arguments can be passed, each
indicating the size of an additional group of fractional decimal places to be used as
necessary to avoid rounding, to a limiting precision of satoshis.