Fast double to string conversion with given precision

Question

I need to convert double to string with given precision. String.format(\"%.3f\", value) (or DecimalFormat) does the job but benchmarks show that it slow even in com

Answer 1

I haven't benchmarked this, but how about using BigDecimal?

BigDecimal bd = new BigDecimal(value).setScale(3, RoundingMode.HALF_UP);
return bd.toString();