Here you can find the source of format(double values, boolean doNotFormat)
public static String format(double values, boolean doNotFormat)
//package com.java2s; /*//from w w w . j a v a 2s . c om * Copyright (C) 2012 Krawler Information Systems Pvt Ltd * All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ import java.text.NumberFormat; import java.util.Locale; public class Main { public static String format(double values, boolean doNotFormat) { if (!doNotFormat) { Locale currentLocale = Locale.US; NumberFormat numberFormatter = NumberFormat.getNumberInstance(currentLocale); numberFormatter.setMinimumFractionDigits(0); numberFormatter.setMaximumFractionDigits(2); return numberFormatter.format(values); } else { return Double.toString(values); } } }