Here you can find the source of addDays(java.util.Date value, final int days)
private static Date addDays(java.util.Date value, final int days)
//package com.java2s; /*/*from w w w. j a v a 2 s . c om*/ * 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.util.Calendar; import java.util.Date; public class Main { private static Date addDays(java.util.Date value, final int days) { final Calendar cal = Calendar.getInstance(); cal.setTime(value); cal.add(Calendar.DATE, days); final Date adjusted = cal.getTime(); return adjusted; } }