views:

357

answers:

4

Hi!

I have a double whose value is 10,000,000.00 (ten millions). I have to convert it to a String. When using the method "toString" I am getting the String "1.0E7" which is correct following the specification. Unfortunately I need the String "10,000,000.00" (or the equivalent depending on the locale).

How can achieve this?

Thanks in advance,

Luis

+2  A: 

Look into "DecimalFormat". It lets you format the output pretty much however you want!

Brian Knoblauch
thanks for your comment +1.
Luixv
+4  A: 

In addition to the formatter, you might consider using the java.math.BigDecimal class to represent numbers precisely.

Calculations where complete accuracy is required, such as financial calculations, are best performed with BigDecimal. Floating point math is better for engineering, graphics, and other mathematical computations where some accuracy can be sacrificed for speed.

erickson
thanks for your comment +1
Luixv
+3  A: 
  public static void main(String[] args) throws ParseException {
    double aDouble = 10000000.00;
    DecimalFormat nf = (DecimalFormat) NumberFormat.getInstance(Locale.US);
    String aString = Double.toString(aDouble);
    System.out.println(nf.parse(aString));
  }
JuanZe
thanks for your comment +1
Luixv