servletapi/jsr152/examples/WEB-INF/classes/dates/JspCalendar.java

/*
* Copyright 2004 The Apache Software Foundation
*
* 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.
*/
package dates;

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

public class JspCalendar {
    Calendar  calendar = null;

    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 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 static void main(String args[]) {
	JspCalendar db = new JspCalendar();
	p("date: " + db.getDayOfMonth());
	p("year: " + db.getYear());
	p("month: " + db.getMonth());
	p("time: " + db.getTime());
	p("date: " + db.getDate());
	p("Day: " + db.getDay());
	p("DayOfYear: " + db.getDayOfYear());
	p("WeekOfYear: " + db.getWeekOfYear());
	p("era: " + db.getEra());
	p("ampm: " + db.getAMPM());
	p("DST: " + db.getDSTOffset());
	p("ZONE Offset: " + db.getZoneOffset());
	p("TIMEZONE: " + db.getUSTimeZone());
    }

    private static void p(String x) {
	System.out.println(x);
    }


    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);
    }
}