jspcalendar.java

一个java写的加密算法

/*
 * Copyright 2004-2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:  
 *       "This product includes software developed by the 
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written 
 *    permission, please contact [e-mail].
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * [Additional notices, if required by prior licensing conditions]
 *
 */ 
package samples.webapps.simple.beans.cal;

import java.text.DateFormat;
import java.util.*;

public class JspCalendar {
    Calendar  calendar = null;
    Date currentDate;

    public JspCalendar() {
	calendar = Calendar.getInstance();
	Date trialTime = new Date();
	calendar.setTime(trialTime);
    }


    public int getYear() {
	return calendar.get(Calendar.YEAR);
    }
    
    public String getMonth() {
	int m = getMonthInt();
	String[] months = new String [] { "January", "February", "March",
					"April", "May", "June",
					"July", "August", "September",
					"October", "November", "December" };
	if (m > 12)
	    return "Unknown to Man";
	
	return months[m - 1];

    }

    public String getDay() {
	int x = getDayOfWeek();
	String[] days = new String[] {"Sunday", "Monday", "Tuesday", "Wednesday", 
				      "Thursday", "Friday", "Saturday"};

	if (x > 7)
	    return "Unknown to Man";

	return days[x - 1];

    }
    
    public int getMonthInt() {
	return 1 + calendar.get(Calendar.MONTH);
    }

    public String getDate() {
	return getMonthInt() + "/" + getDayOfMonth() + "/" +  getYear();	
    }

    public String getCurrentDate() {
        Date dt = new Date ();
	calendar.setTime (dt);
	return getMonthInt() + "/" + getDayOfMonth() + "/" +  getYear();

    }

    public String getNextDate() {
        calendar.set (Calendar.DAY_OF_MONTH, getDayOfMonth() + 1);
	return getDate ();
    }

    public String getPrevDate() {
        calendar.set (Calendar.DAY_OF_MONTH, getDayOfMonth() - 1);
	return getDate ();
    }

    public String getTime() {
	return getHour() + ":" + getMinute() + ":" + getSecond();
    }

    public int getDayOfMonth() {
	return calendar.get(Calendar.DAY_OF_MONTH);
    }

    public int getDayOfYear() {
	return calendar.get(Calendar.DAY_OF_YEAR);
    }

    public int getWeekOfYear() {
	return calendar.get(Calendar.WEEK_OF_YEAR);
    }

    public int getWeekOfMonth() {
	return calendar.get(Calendar.WEEK_OF_MONTH);
    }

    public int getDayOfWeek() {
	return calendar.get(Calendar.DAY_OF_WEEK);
    }
     
    public int getHour() {
	return calendar.get(Calendar.HOUR_OF_DAY);
    }
    
    public int getMinute() {
	return calendar.get(Calendar.MINUTE);
    }


    public int getSecond() {
	return calendar.get(Calendar.SECOND);
    }

  
    public int getEra() {
	return calendar.get(Calendar.ERA);
    }

    public String getUSTimeZone() {
	String[] zones = new String[] {"Hawaii", "Alaskan", "Pacific",
				       "Mountain", "Central", "Eastern"};
	
	return zones[10 + getZoneOffset()];
    }

    public int getZoneOffset() {
	return calendar.get(Calendar.ZONE_OFFSET)/(60*60*1000);
    }


    public int getDSTOffset() {
	return calendar.get(Calendar.DST_OFFSET)/(60*60*1000);
    }

    
    public int getAMPM() {
	return calendar.get(Calendar.AM_PM);
    }
}