Java Year From getYearStart(long ts)

Description

get Year Start

License

Apache License

Declaration

public static long getYearStart(long ts) 

Method Source Code

//package com.java2s;
/*// w  ww  .  java  2  s. c o m
 * 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.TimeZone;

public class Main {
    private static TimeZone gmt = TimeZone.getTimeZone("GMT");

    public static long getYearStart(long ts) {
        Calendar calendar = Calendar.getInstance(gmt);
        calendar.setTimeInMillis(ts);
        int year = calendar.get(Calendar.YEAR);
        calendar.clear();
        calendar.set(year, 0, 1);
        return calendar.getTimeInMillis();
    }
}

Related

1. getYearOfPreYearWeek(int year, int week)
2. getYearOfTime(Long time)
3. getYears(Integer limit)
4. getyears(List numberList)
5. getYearStart(int year)
6. getYearStartTime()
7. isInYear(String dateStr, int year)
8. setYears(Date date, int amount)
9. toNowYear(Date date)