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Java example source code file (DatePrinter.java)

This example Java source code file (DatePrinter.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

appendable, dateprinter, deprecated, fieldposition, locale, string, stringbuffer, text, timezone, util

The DatePrinter.java Java example source code

/*
 * 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.
 */
package org.apache.commons.lang3.time;

import java.text.FieldPosition;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

/**
 * DatePrinter is the "missing" interface for the format methods of 
 * {@link java.text.DateFormat}. You can obtain an object implementing this
 * interface by using one of the FastDateFormat factory methods.
 * <p>
 * Warning: Since binary compatible methods may be added to this interface in any
 * release, developers are not expected to implement this interface.
 * 
 * @since 3.2
 */
public interface DatePrinter {

    /**
     * <p>Formats a millisecond {@code long} value.

* * @param millis the millisecond value to format * @return the formatted string * @since 2.1 */ String format(long millis); /** * <p>Formats a {@code Date} object using a {@code GregorianCalendar}.

* * @param date the date to format * @return the formatted string */ String format(Date date); /** * <p>Formats a {@code Calendar} object.

* The TimeZone set on the Calendar is only used to adjust the time offset. * The TimeZone specified during the construction of the Parser will determine the TimeZone * used in the formatted string. * * @param calendar the calendar to format. * @return the formatted string */ String format(Calendar calendar); /** * <p>Formats a millisecond {@code long} value into the * supplied {@code StringBuffer}.</p> * @deprecated Use {{@link #format(long, Appendable)}. * * @param millis the millisecond value to format * @param buf the buffer to format into * @return the specified string buffer */ @Deprecated StringBuffer format(long millis, StringBuffer buf); /** * <p>Formats a {@code Date} object into the * supplied {@code StringBuffer} using a {@code GregorianCalendar}.</p> * @deprecated Use {{@link #format(Date, Appendable)}. * * @param date the date to format * @param buf the buffer to format into * @return the specified string buffer */ @Deprecated StringBuffer format(Date date, StringBuffer buf); /** * <p>Formats a {@code Calendar} object into the supplied {@code StringBuffer}.

* The TimeZone set on the Calendar is only used to adjust the time offset. * The TimeZone specified during the construction of the Parser will determine the TimeZone * used in the formatted string. * @deprecated Use {{@link #format(Calendar, Appendable)}. * * @param calendar the calendar to format * @param buf the buffer to format into * @return the specified string buffer */ @Deprecated StringBuffer format(Calendar calendar, StringBuffer buf); /** * <p>Formats a millisecond {@code long} value into the * supplied {@code Appendable}.</p> * * @param millis the millisecond value to format * @param buf the buffer to format into * @param <B> the Appendable class type, usually StringBuilder or StringBuffer. * @return the specified string buffer * @since 3.5 */ <B extends Appendable> B format(long millis, B buf); /** * <p>Formats a {@code Date} object into the * supplied {@code Appendable} using a {@code GregorianCalendar}.</p> * * @param date the date to format * @param buf the buffer to format into * @param <B> the Appendable class type, usually StringBuilder or StringBuffer. * @return the specified string buffer * @since 3.5 */ <B extends Appendable> B format(Date date, B buf); /** * <p>Formats a {@code Calendar} object into the supplied {@code Appendable}.

* The TimeZone set on the Calendar is only used to adjust the time offset. * The TimeZone specified during the construction of the Parser will determine the TimeZone * used in the formatted string. * * @param calendar the calendar to format * @param buf the buffer to format into * @param <B> the Appendable class type, usually StringBuilder or StringBuffer. * @return the specified string buffer * @since 3.5 */ <B extends Appendable> B format(Calendar calendar, B buf); // Accessors //----------------------------------------------------------------------- /** * <p>Gets the pattern used by this printer.

* * @return the pattern, {@link java.text.SimpleDateFormat} compatible */ String getPattern(); /** * <p>Gets the time zone used by this printer.

* * <p>This zone is always used for {@code Date} printing.

* * @return the time zone */ TimeZone getTimeZone(); /** * <p>Gets the locale used by this printer.

* * @return the locale */ Locale getLocale(); /** * <p>Formats a {@code Date}, {@code Calendar} or * {@code Long} (milliseconds) object.</p> * * See {@link java.text.DateFormat#format(Object, StringBuffer, FieldPosition)} * * @param obj the object to format * @param toAppendTo the buffer to append to * @param pos the position - ignored * @return the buffer passed in */ StringBuffer format(Object obj, StringBuffer toAppendTo, FieldPosition pos); }

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