Java Year Day getWeekNumOfYearDay(String strDate)

Description

get Week Num Of Year Day

License

Apache License

Declaration

public static int getWeekNumOfYearDay(String strDate) throws ParseException 

Method Source Code

//package com.java2s;
/*//www  .ja v  a  2 s .com
 * 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.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class Main {

    public static int getWeekNumOfYearDay(String strDate) throws ParseException {
        Calendar calendar = Calendar.getInstance();
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        Date curDate = format.parse(strDate);
        int iWeekNum;
        calendar.setTime(curDate);
        if (calendar.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) {
            iWeekNum = calendar.get(Calendar.WEEK_OF_YEAR) - 1;
        } else {
            iWeekNum = calendar.get(Calendar.WEEK_OF_YEAR);
        }
        return iWeekNum;
    }

    public static int getWeekNumOfYearDay(Date curDate) {
        if (curDate == null)
            return 0;
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(curDate);
        int iWeekNum;
        if (calendar.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) {
            iWeekNum = calendar.get(Calendar.WEEK_OF_YEAR) - 1;
        } else {
            iWeekNum = calendar.get(Calendar.WEEK_OF_YEAR);
        }
        // int iWeekNum = calendar.get(Calendar.WEEK_OF_YEAR);
        return iWeekNum;
    }
}

Related

1. getFirstDayOfThisYear()
2. getLastDayOfTheYear(int year)
3. getLastDayOfYear(int year)
4. getLastDayOfYear(int year)
5. getTodayYear()
6. getYearFirstDay(String date)
7. getYearLastDay(String dateString)
8. getYearWeek(String curday)
9. getYearWeek(String curday)