Java Week Calculate getWeekNumberFromDate(Date date)

Description

Compute the week number of parameter date

License

Apache License

Parameter

Parameter	Description
date	a parameter

Return

Week number : ex 13

Declaration

public static int getWeekNumberFromDate(Date date) 

Method Source Code

//package com.java2s;
/**/*from w w w  .j  a  v a2 s.c o  m*/
 * Copyright (C) 2016 Hurence (support@hurence.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.util.*;

public class Main {
    /**
     * Compute the week number of parameter date
     *
     * @param date
     * @return Week number : ex 13
     */
    public static int getWeekNumberFromDate(Date date) {

        if (date != null) {
            Calendar calendar = Calendar.getInstance();
            calendar.setFirstDayOfWeek(Calendar.MONDAY);
            calendar.setTime(date);

            return calendar.get(Calendar.WEEK_OF_YEAR);
        } else {
            return 0;
        }
    }
}

Related

1. getCurrWeek()
2. getEndOfWeek(Calendar cal)
3. getSeqWeek()
4. getWeek(Date date)
5. getWeekAbscissa(Class cls)
6. getWeekOfDate(Date date)
7. getWeekOfYear(Date date, Locale locale)
8. getWeeksAddCount(int repType, int repIndex)
9. getWeeksInYear(int year)