Java Number Add add(Object num1, Object num2)

Description

add

License

Apache License

Declaration

public static Double add(Object num1, Object num2) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.math.BigDecimal;

public class Main {
    private static int DEF_SCALE = 10;

    public static Double add(Object num1, Object num2) {
        BigDecimal result = bigDecimal(num1).add(bigDecimal(num2));
        return result.setScale(DEF_SCALE, BigDecimal.ROUND_HALF_UP)
                .doubleValue();//from w  w w .j  a v  a 2s  . c  om
    }

    public static BigDecimal bigDecimal(Object object) {
        if (object == null) {
            throw new NullPointerException();
        }
        BigDecimal result;
        try {
            result = new BigDecimal(String.valueOf(object).replaceAll(",",
                    ""));
        } catch (NumberFormatException e) {
            throw new NumberFormatException("Please give me a numeral.Not "
                    + object);
        }
        return result;
    }
}

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4. add(Number a, Number b)
5. add(Object addend, Object augend)
6. add(String number1, String number2)
7. add(T a, T b)
8. add1(Double v1, Double v2)
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