BigDecimal Sets [n] to [dp] decimal places. - Java java.math

Java examples for java.math:BigDecimal

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Description

BigDecimal Sets [n] to [dp] decimal places.

Demo Code

/*/*from   www.  j av a 2  s.co m*/
 * BigDecimalHelper.java
 * Copyright 2003 (C) Jonas Karlsson <jujutsunerd@sf.net>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Created on April 12, 2003, 3:20 AM
 */
//package com.java2s;
import java.math.BigDecimal;

public class Main {
    public static void main(String[] argv) throws Exception {
        BigDecimal n = new BigDecimal("1234");
        int dp = 2;
        System.out.println(formatBigDecimal(n, dp));
    }

    /**
     * Sets [n] to [dp] decimal places.
     * @param n the BigDecimal to format
     * @param dp the wanted number of decimal places
     * @return the formated BigDecimal
     */
    public static BigDecimal formatBigDecimal(BigDecimal n, int dp) {
        return n.setScale(dp, BigDecimal.ROUND_HALF_UP); // Sets scale and rounds up if most significant (cut off) number >= 5
    }
}

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