Java BigDecimal from toBigDecimal(Number number, int scale)

Description

to Big Decimal

License

Apache License

Declaration

public static BigDecimal toBigDecimal(Number number, int scale) 

Method Source Code

//package com.java2s;
/*//from w ww .j av a 2s  . co m
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you 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.math.BigInteger;

public class Main {
    public static BigDecimal toBigDecimal(Number number, int scale) {
        BigDecimal bd = toBigDecimal(number);
        return rescaleBigDecimal(bd, scale);
    }

    public static BigDecimal toBigDecimal(Number number) {
        if (number == null) {
            return null;
        }
        if (number instanceof BigDecimal) {
            return (BigDecimal) number;
        } else if ((number instanceof Double) || (number instanceof Float)) {
            // For JDK 1.4 compatibility
            return new BigDecimal(number.doubleValue());
            //return BigDecimal.valueOf(((Number) number).doubleValue());
        } else if (number instanceof BigInteger) {
            return new BigDecimal((BigInteger) number);
        } else {
            return new BigDecimal(number.longValue());
        }
    }

    public static BigDecimal rescaleBigDecimal(BigDecimal bd, int scale) {
        if (bd != null) {
            bd = bd.setScale(scale, BigDecimal.ROUND_HALF_UP);
        }
        return bd;
    }
}

Related

1. toBigDecimal(Number num)
2. toBigDecimal(Number number)
3. toBigDecimal(Number number)
4. toBigDecimal(Number number)
5. toBigDecimal(Number number)
6. toBigDecimal(Number price)
7. toBigDecimal(Object n)
8. toBigDecimal(Object obj)
9. toBigDecimal(Object obj)