Here you can find the source of formatNumber(Object value, Locale locale)
public static String formatNumber(Object value, Locale locale)
//package com.java2s; /**/*w w w . java2 s . c o m*/ * Copyright 2014 Roberto Gamarra [icarus] ** ( Betto McRose ) * mcrose@icarusdb.com.py | mcrose.dev@gmail.com * * as you wish... at your service ;-P * * IcarusDB.com.py * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.math.BigDecimal; import java.text.NumberFormat; import java.util.Locale; public class Main { public static String formatNumber(Object value, Locale locale) { NumberFormat nf = NumberFormat.getNumberInstance(locale); String sval = new String(value.toString()); if (sval.contains("(")) { String[] split = sval.split("\\("); sval = split[1]; } if (sval.contains(")")) { String[] split = sval.split("\\)"); sval = split[0]; } return nf.format(new BigDecimal(sval)); } }