Here you can find the source of format(NumberFormat nf, float number, float defaultValue)
public static String format(NumberFormat nf, float number, float defaultValue)
//package com.java2s; /**// w w w .j a va 2 s. co m * Copyright (c) 2000-2005 Liferay, LLC. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ import java.text.NumberFormat; public class Main { public static String format(NumberFormat nf, double number, double defaultValue) { if ((Double.isNaN(number)) || (Double.isInfinite(number))) { return nf.format(defaultValue); } else { return nf.format(number); } } public static String format(NumberFormat nf, float number, float defaultValue) { if ((Float.isNaN(number)) || (Float.isInfinite(number))) { return nf.format(defaultValue); } else { return nf.format(number); } } }