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androidnumbersbigdecimal

android big decimal approximation

I want to approximate a number showing only two digits after the decimal point. I wrote this:

String result = String.valueOf(new BigDecimal(price).setScale(4, BigDecimal.ROUND_UP).doubleValue());

If price is a decimal number like 63,9222, it works fine. But If price is ,for example, equal to 7.00, is printed 7.0 .

I tried to use RoundingMode.CEILING instead of BigDecimal.ROUND_UP , but it didn't work and i don't know why. Maybe it will be better to use Double instead of BigDecimal?

Solution

  • Use String.format

    double myValue = new BigDecimal(price).setScale(4, BigDecimal.ROUND_UP).doubleValue());
String result = String.format(Locale.ENGLISH, "%.2f", myValue);