Format number to group with #,###,### in Java
Description
The following code shows how to format number to group with #,###,###.
Example
/*from w w w. j av a 2 s . co m*/
import java.text.DecimalFormat;
import java.text.NumberFormat;
public class Main {
public static void main(String[] argv) throws Exception {
NumberFormat formatter = new DecimalFormat("#,###,###");
String s = formatter.format(-1234.567);
System.out.println(s);
s = formatter.format(-1234567.890);
System.out.println(s);
}
}
The code above generates the following result.