I am trying to format a Number with DecimalFormat
. But I want it to format a number, that is like
input: 1234. --> should be formatted to: 1,234.
But I get 1,234.0
or 1,234.00
depending on my rules for the decimal format What do I have to do in order to get this done?
The methods that should help you are setMinimumFractionDigits and setMaximumFractionDigits .
format.setMinimumFractionDigits(0);
at a guess, is probably what your looking for.
To ensure that the decimal separator is always shown, use: DecimalFormat.setDecimalSeparatorAlwaysShown(true)
You could format the number regardless of whether it is a decimal or not by using
DecimalFormat f = new DecimalFormat("#,###");
f.format(whatever)...
If you don't want to display any decimal places, don't format a floating point value :) If you use BigInteger
, int
, or long
, it should be fine:
import java.math.*;
import java.text.*;
public class Test {
private static final char p = 'p';
public static void main(String[] args) {
NumberFormat format = new DecimalFormat();
BigInteger value = BigInteger.valueOf(1234);
System.out.println(format.format(value));
System.out.println(format.format(1234));
System.out.println(format.format(1234L));
}
}
Try this:
DecimalFormat df = new DecimalFormat("#,###.", DecimalFormatSymbols.getInstance(Locale.ENGLISH));
System.out.println(df.format(1234));
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