Java ZonedDateTime Calculate addRandomDeltaDays(ZonedDateTime ZDT, int minDays, int maxDays, int minHour, int maxHour)

Description

Adds/substract randomly between minDays and maxDays number of days to this date and sets the hours within the range prescribed (min/maxHours), and a randomly selected minute between 0 and 60.

License

Apache License

Declaration

public static ZonedDateTime addRandomDeltaDays(ZonedDateTime ZDT, int minDays, int maxDays, int minHour,
        int maxHour) 

Method Source Code

//package com.java2s;
/* ===========================================================================
 * Copyright (C) 2015 CapsicoHealth Inc.
 *
 * 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./*from  w  ww. ja v a 2 s  .c o m*/
 */

import java.time.ZonedDateTime;

public class Main {
    /**
     * Adds/substract randomly between minDays and maxDays number of days to this date
     * and sets the hours within the range prescribed (min/maxHours), and a randomly selected minute between 0 and 60.
     */
    public static ZonedDateTime addRandomDeltaDays(ZonedDateTime ZDT, int minDays, int maxDays, int minHour,
            int maxHour) {
        if (ZDT == null)
            return null;

        int days = (int) Math.floor((Math.random() * (maxDays - minDays)) + minDays);
        int hours = (int) Math.floor((Math.random() * (maxHour - minHour)) + minHour);
        int minutes = (int) Math.floor((Math.random() * 60));

        return ZDT.plusDays(days).withHour(hours).withMinute(minutes);
    }
}

Related

1. addOffset(ZonedDateTime time, String offset)
2. addRandomDeltaMinutes(ZonedDateTime ZDT, int minMinutes, int maxMinutes)
3. asZonedDateTime(Date date)
4. calculateTimeForSunrise(ZonedDateTime from, ZonedDateTime to)
5. canonicalTimeString(ZonedDateTime time)