Decimal Format

package com.sun.example;
 
/* From http://java.sun.com/docs/books/tutorial/index.html */
 
/*
 * Copyright (c) 1995-1998 Sun Microsystems, Inc. All Rights Reserved.
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 * Permission to use, copy, modify, and distribute this software and its
 * documentation for NON-COMMERCIAL purposes and without fee is hereby granted
 * provided that this copyright notice appears in all copies. Please refer to
 * the file "copyright.html" for further important copyright and licensing
 * information.
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 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
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 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
 * NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY
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import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.NumberFormat;
import java.util.Locale;
 
public class DecimalFormatDemo {
 
    static public void customFormat(String pattern, double value) {
	DecimalFormat myFormatter = new DecimalFormat(pattern);
	String output = myFormatter.format(value);
	System.out.println(value + "  " + pattern + "  " + output);
    }
 
    static public void localizedFormat(String pattern, double value, Locale loc) {
	NumberFormat nf = NumberFormat.getNumberInstance(loc);
	DecimalFormat df = (DecimalFormat) nf;
	df.applyPattern(pattern);
	String output = df.format(value);
	System.out.println(pattern + "  " + output + "  " + loc.toString());
    }
 
    static public void main(String[] args) {
 
	customFormat("###,###.###", 123456.789);
	customFormat("###.##", 123456.789);
	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]);
	}
 
    }
}