Java BigDecimal Subtract subtract(BigDecimal amount, BigDecimal subtrahend, int scale)

Description

subtract

License

Open Source License

Declaration

public static BigDecimal subtract(BigDecimal amount, BigDecimal subtrahend, int scale) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.math.BigDecimal;
import java.math.RoundingMode;

public class Main {
    public static BigDecimal subtract(BigDecimal amount, BigDecimal subtrahend, int scale) {
        return roundBigDecimal(amount.subtract(subtrahend), scale);
    }//from   w ww . j  a va  2s.  co m

    public static BigDecimal subtract(BigDecimal... amounts) {
        return subtract(2, amounts);
    }

    public static BigDecimal subtract(int scale, BigDecimal... amounts) {
        BigDecimal result = null;
        for (BigDecimal bigDecimal : amounts) {
            if (bigDecimal != null) {
                result = result == null ? bigDecimal : result.subtract(bigDecimal);
            }
        }
        return roundBigDecimal(result);
    }

    public static BigDecimal roundBigDecimal(BigDecimal num) {
        return roundBigDecimal(num, 2);
    }

    public static BigDecimal roundBigDecimal(BigDecimal num, int scale) {
        if (num != null) {
            return num.setScale(scale, RoundingMode.HALF_UP);
        }
        return num;
    }
}

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