Hi friend,

import java.io.*;
import java.util.*;
import java.text.*;

public class CommaInsert {

static public void customFormat(String pattern, double value ){
DecimalFormat myFormatter = new DecimalFormat(pattern);
String str = myFormatter.format(value);
System.out.println(value + " " + pattern + " " + str);
}

static public void localizedFormat(String pattern, double value, Locale local ){
NumberFormat numformate = NumberFormat.getNumberInstance(local);
DecimalFormat decformate = (DecimalFormat)numformate;
decformate.applyPattern(pattern);
String str = decformate.format(value);
System.out.println(pattern + " " + str + " " + local.toString());
}

static public void main(String[] args) {
customFormat("###,###.###", 1000.789);
customFormat("###.##", 1500.789);
customFormat("000000.000", 123.78);
customFormat("$###,###.###", 12345.67);
customFormat("\u00a5###,###.###", 12345.67);

Locale currentLocale = new Locale("en", "US");

DecimalFormatSymbols unusualSymbols = new DecimalFormatSymbols(currentLocale);
unusualSymbols.setDecimalSeparator('|');
unusualSymbols.setGroupingSeparator('^');
String strange = "#,##0.###";

DecimalFormat weirdFormatter = new DecimalFormat(strange, unusualSymbols);

weirdFormatter.setGroupingSize(4);
String bizarre = weirdFormatter.format(12345.678);
System.out.println(bizarre);

Locale[] locales = { new Locale("en", "US"),new Locale("de", "DE"),new Locale("fr", "FR")};

for (int i = 0; i < locales.length; i++) {
localizedFormat("###,###.###", 123456.789, locales[i]);
}
}
}


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