Java Day Between internalTrimOrAlterDate(Date date, boolean trim, int dayDiff)

Description

internal Trim Or Alter Date

License

Apache License

Declaration

private static Date internalTrimOrAlterDate(Date date, boolean trim, int dayDiff) 

Method Source Code

//package com.java2s;
/**// w ww . ja  va2  s . c  o  m
 * https://github.com/auzll/
 *
 * 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 internalTrimOrAlterDate(Date date, boolean trim, int dayDiff) {

        if (null == date) {
            return null;
        }

        Calendar cal = Calendar.getInstance();
        cal.setTime(date);

        if (trim) {
            cal.set(Calendar.MILLISECOND, 0);
            cal.set(Calendar.SECOND, 0);
            cal.set(Calendar.MINUTE, 0);
            cal.set(Calendar.HOUR_OF_DAY, 0);
        }

        if (0 != dayDiff) {
            cal.add(Calendar.DAY_OF_MONTH, dayDiff);
        }

        return cal.getTime();
    }
}

Related

1. getTodayDiff(String diffDate)
2. getWorkingDaysBetween(Date fromDate, Date toDate)
3. getYearDiff(Date date1, Date date2)
4. getYearsDifference(Date startTime, Date endTime)
5. hourDiff(Date firstDate, Date lastDate)
6. monthDiff(Date beginDate, Date endDate)
7. monthDiff(Date from, Date to)
8. monthDiff(Date fromDate, Date toDate)
9. monthDifference(final Date a, final Date b)