NumberFormat Class Question

[SoullessWhale]

Its telling me it cant find getInstance() inside of the NumberFormat class. why?

    public String convertString (int numberOfDigits) {
        
        //return the value of the Rational number up to the numberOfDigits fractional digits
        double toStr;
        toStr = (double)numerator / (double)denominator;    

        NumberFormat newForm = new NumberFormat.getInstance();
        newForm.setMaximumFractionDigits(numberOfDigits);
        newForm.setMinimumFractionDigits(numberOfDigits);

        stringNum = newForm.format(Double.toString(toStr));
        return stringNum;
    }

[SoullessWhale]

got ittt