how to format a float like 0#.## in java? [duplicate]

Question

I get an input from the user. I want to print it in this format:

0#.##

or

##.##

how do I do this in java?

Today I'm using:

padWithZeroRightToPeriod(product.formats[index],Float.parseFloat(currentPrice));

and

private String padWithZeroRightToPeriod(String serverFormat, float unformattedNumber) {
  int nDigits = getNumberOfDigitsAfterPeriod(serverFormat);
  String floatingFormat = "%4." + nDigits + "f";
  String formattedPrice = String.format(floatingFormat, unformattedNumber);

  return formattedPrice
}

but it converts 08.56 to 8.56.

Answer 1

For two decimal places, and at least two whole digits, with leading zeroes:

String floatingFormat = "%05.2f";

• The 0 pads the string with zeros instead of spaces.
• The 5 is the minimum total field width, including the whole, fractional and decimal point parts.
• The 2 is the exact number of decimal places to be printed.