Java Year Format formatYear(Date date)

Description

Formats a Date object to an ISO8601 year string.

License

Apache License

Parameter

Parameter	Description
date	a parameter

Return

ISO8601 year as a String object.

Declaration

public static String formatYear(Date date) 

Method Source Code

//package com.java2s;
/*/*from   w  ww. java 2 s.  co m*/
 *
 * Copyright 2011, 2012, 2013 the University of New Mexico.
 *
 * This work was supported by National Science Foundation Cooperative
 * Agreements #DEB-0832652 and #DEB-0936498.
 *
 * 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.text.DateFormat;

import java.text.SimpleDateFormat;
import java.util.Date;

public class Main {
    private static DateFormat m_ISO8601Year = new SimpleDateFormat("yyyy");

    /**
     * Formats the current Date object to an ISO8601 year string.
     * 
     * @return ISO8601 year as a String object.
     */
    public static String formatYear() {
        return formatYear(new Date());
    }

    /**
     * Formats a Date object to an ISO8601 year string.
     * 
     * @param date
     * @return ISO8601 year as a String object.
     */
    public static String formatYear(Date date) {
        if (date == null) {
            return formatYear(new Date());
        }

        // format in (almost) ISO8601 format
        String dateStr = m_ISO8601Year.format(date);
        return dateStr;
    }
}

Related

1. formatNanosYearGMT(long nanos)
2. formatSlashedMmDdYy()
3. formatTimeStampYearFirst(Date date)
4. formatUniversalMonthYear(Date date)
5. formatYear(Date d, Locale locale)
6. formatYear(Date date)
7. formatYearMonth(Date date)
8. formatYyyyMm(Date date)
9. formatyyyyMMddHHmmss(long time)