Here you can find the source of add(BigDecimal value1, BigDecimal value2)
public static BigDecimal add(BigDecimal value1, BigDecimal value2)
//package com.java2s; /**//from w ww.j a v a2s . co m * Copyright (C) 2010 - 2014 VREM Software Development <VREMSoftwareDevelopment@gmail.com> * * Licensed 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; public class Main { public static BigDecimal ZERO_VALUE = new BigDecimal(0).setScale(2, BigDecimal.ROUND_HALF_UP); public static BigDecimal add(BigDecimal value1, BigDecimal value2) { if (value1 != null && value2 != null) { return value1.add(value2); } if (value1 != null) { return value1; } if (value2 != null) { return value2; } return ZERO_VALUE; } }