Add n BigDecimal safely - Java java.math

Java examples for java.math:BigDecimal Calculation

  1. HOME
  2. Java
  3. java.math
  4. BigDecimal Calculation

Description

Add n BigDecimal safely

Demo Code


//package com.java2s;
import java.math.BigDecimal;

public class Main {
    public static void main(String[] argv) throws Exception {
        BigDecimal start = new BigDecimal("1234");
        BigDecimal values = new BigDecimal("1234");
        System.out.println(add(start, values));
    }/*from w w w  . j  a v a 2 s  . c o  m*/

    /**
     * Add n BigDecimal safely (i.e. handles nulls)
     */
    public static BigDecimal add(final BigDecimal start,
            final BigDecimal... values) {
        BigDecimal total = start != null ? start : BigDecimal.ZERO;
        if (values != null) {
            for (final BigDecimal v : values) {
                total = doAdd(total, v);
            }
        }
        return total;
    }

    public static BigDecimal add(final String start, final String... values) {
        BigDecimal total = start != null ? new BigDecimal(start)
                : BigDecimal.ZERO;
        if (values != null) {
            for (final String v : values) {
                total = doAdd(total, new BigDecimal(v));
            }
        }
        return total;
    }

    /**
     * Add 2 BigDecimal safely (i.e. handles nulls)
     */
    private static BigDecimal doAdd(final BigDecimal v1, final BigDecimal v2) {
        BigDecimal total = v1;
        if (v1 != null && v2 != null) {
            total = v1.add(v2);
        } else if (v2 != null) {
            total = v2;
        }
        return total;
    }
}

Related Tutorials