Here you can find the source of round(double number)
Parameter | Description |
---|---|
number | number to be rounded |
public static double round(double number)
//package com.java2s; /*/* www . j a va 2 s . c om*/ * Copyright (C) 2007 by JSC Telasi * http://www.telasi.ge * * 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., * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ public class Main { /** * Rounds an argument number with precision of 2 decimal digits. * * @param number * number to be rounded * @return rounded result, with precision of 2 decimal digits */ public static double round(double number) { return round(number, 2); } /** * Rounds an argument number with specified precision. * * @param number * number to be rounded * @param precision * precision, that is a * @return */ public static double round(double number, int precision) { int power = (int) Math.pow(10, precision); double num2 = Math.round(number * power); return num2 / power; } }