Here you can find the source of addRandomDeltaMinutes(ZonedDateTime ZDT, int minMinutes, int maxMinutes)
public static ZonedDateTime addRandomDeltaMinutes(ZonedDateTime ZDT, int minMinutes, int maxMinutes)
//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 w w . j a va2 s.c o m */ import java.time.ZonedDateTime; public class Main { /** * Adds/substract randomly between min/maxMinutes number of minutes to this date. */ public static ZonedDateTime addRandomDeltaMinutes(ZonedDateTime ZDT, int minMinutes, int maxMinutes) { if (ZDT == null) return null; int minutes = (int) Math.round((Math.random() * (minMinutes - minMinutes)) + minMinutes); return ZDT.plusMinutes(minutes); } }