In this article, we will learn how to convert Calendar to XMLGregorianCalendar and vice-versa in Java
Calendar to XMLGregorianCalendar conversion & vice-versa:
It is very simple and easy to convert Calendar to XMLGregorianCalendar and vice–versa –
- Convert Calendar to XMLGregorianCalendar
- First, get Calendar instance
- And then convert Calendar to GregorianCalendar
- And then finally convert GregorianCalendar to XMLGregorianCalendar
- Convert XMLGregorianCalendar to Calendar
- First, create XMLGregorianCalendar object
- And then convert XMLGregorianCalendar to GregorianCalendar using toGregorianCalendar() method
- And then finally convert GregorianCalendar to Calendar using up–casting
1. Convert Calendar to XMLGregorianCalendar :
- Get Calendar instance using getInstance() method of Calendar
- For Calendar to XMLGregorianCalendar conversion,
- First convert Calendar to GregorianCalendar by instantiating GregorianCalendar object and setting date/time using setTime() method of GregorianCalendar
- And then convert GregorianCalendar to XMLGregorianCalendar using DatatypeFactory.newInstance().newXMLGregorianCalendar(gCal);
- In short, Calendar -> GregorianCalendar -> XMLGregorianCalendar
- Note: GregorianCalendar is a sub-class of Calendar class
- Finally, print XMLGregorianCalendar/Date in different formats using DateFormat/SimpleDateFormat classes
ConvertCalendarToXmlGregorianCalendar.java
package in.bench.resources.java8.date.examples;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;
public class ConvertCalendarToXmlGregorianCalendar {
public static void main(String[] args) throws DatatypeConfigurationException {
// 1. get Calendar instance
Calendar calendar = Calendar.getInstance();
System.out.println("Calendar is :- \n"
+ calendar);
// 2. First, convert Calendar instance to GregorianCalendar object
GregorianCalendar gregorianCalendar = new GregorianCalendar();
gregorianCalendar.setTime(calendar.getTime());
System.out.println("\nGregorianCalendar is :- \n"
+ gregorianCalendar);
// 3. convert Calendar -> GregorianCalendar -> XMLGregorianCalendar
XMLGregorianCalendar xmlGregorianCalendar = DatatypeFactory
.newInstance()
.newXMLGregorianCalendar(gregorianCalendar);
System.out.println("\nXMLGregorianCalendar is :- \n"
+ xmlGregorianCalendar);
// 3.1 DateFormatter 1
DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
String formattedTimestampInStr1 = dateFormat.format(
xmlGregorianCalendar
.toGregorianCalendar()
.getTime()
);
System.out.println("\nFormatted Date in (dd-MM-yyyy HH:mm:ss) format is :- \n"
+ formattedTimestampInStr1);
// 3.2 DateFormatter 1
dateFormat = new SimpleDateFormat("dd/MMM/yy HH:mm");
String formattedTimestampInStr2 = dateFormat.format(xmlGregorianCalendar
.toGregorianCalendar()
.getTime()
);
System.out.println("\nFormatted Date in (dd/MMM/yy HH:mm) format is :- \n"
+ formattedTimestampInStr2);
// 3.3 DateFormatter 1
dateFormat = new SimpleDateFormat("EEEE dd MMMM, yyyy hh:mm:ss a z");
String formattedTimestampInStr3 = dateFormat.format(
xmlGregorianCalendar
.toGregorianCalendar()
.getTime()
);
System.out.print("\nFormatted Date in (EEEE dd MMMM, yyyy hh:mm:ss a z) format is :- \n"
+ formattedTimestampInStr3);
}
}
Output:
Calendar is :-
java.util.GregorianCalendar[time=1661859964736,areFieldsSet=true,areAllFieldsSet=true,
lenient=true,zone=sun.util.calendar.ZoneInfo[id="Asia/Calcutta",offset=19800000,
dstSavings=0,useDaylight=false,transitions=7,lastRule=null],firstDayOfWeek=1,
minimalDaysInFirstWeek=1,ERA=1,YEAR=2022,MONTH=7,WEEK_OF_YEAR=36,
WEEK_OF_MONTH=5,DAY_OF_MONTH=30,DAY_OF_YEAR=242,DAY_OF_WEEK=3,
DAY_OF_WEEK_IN_MONTH=5,AM_PM=1,HOUR=5,HOUR_OF_DAY=17,MINUTE=16,
SECOND=4,MILLISECOND=736,ZONE_OFFSET=19800000,DST_OFFSET=0]
GregorianCalendar is :-
java.util.GregorianCalendar[time=1661859964736,areFieldsSet=true,areAllFieldsSet=true,
lenient=true,zone=sun.util.calendar.ZoneInfo[id="Asia/Calcutta",offset=19800000,
dstSavings=0,useDaylight=false,transitions=7,lastRule=null],firstDayOfWeek=1,
minimalDaysInFirstWeek=1,ERA=1,YEAR=2022,MONTH=7,WEEK_OF_YEAR=36,
WEEK_OF_MONTH=5,DAY_OF_MONTH=30,DAY_OF_YEAR=242,DAY_OF_WEEK=3,
DAY_OF_WEEK_IN_MONTH=5,AM_PM=1,HOUR=5,HOUR_OF_DAY=17,MINUTE=16,
SECOND=4,MILLISECOND=736,ZONE_OFFSET=19800000,DST_OFFSET=0]
XMLGregorianCalendar is :-
2022-08-30T17:16:04.736+05:30
Formatted Date in (dd-MM-yyyy HH:mm:ss) format is :-
30-08-2022 17:16:04
Formatted Date in (dd/MMM/yy HH:mm) format is :-
30/Aug/22 17:16
Formatted Date in (EEEE dd MMMM, yyyy hh:mm:ss a z) format is :-
Tuesday 30 August, 2022 05:16:04 pm IST
2. Convert XMLGregorianCalendar to Calendar :
- First, create XMLGregorianCalendar object
- For XMLGregorianCalendar to Calendar conversion,
- First convert XMLGregorianCalendar to GregorianCalendar using toGregorianCalendar() method
- And then convert GregorianCalendar to Calendar by simply assigning GregorianCalendar object to Calendar instance using up–casting
- In short, XMLGregorianCalendar -> GregorianCalendar -> Calendar
- Note: Calendar is a super-class of GregorianCalendar class
- Finally, print Calendar/Date in different formats using DateFormat/SimpleDateFormat classes
ConvertXmlGregorianCalendarToCalendar.java
package in.bench.resources.java8.date.examples;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.XMLGregorianCalendar;
public class ConvertXmlGregorianCalendarToCalendar {
public static void main(String[] args) throws DatatypeConfigurationException {
// 1. get new instance of XMLGregorianCalendar
XMLGregorianCalendar xmlGregorianCalendar = DatatypeFactory
.newInstance()
.newXMLGregorianCalendar(
"2022-08-31T05:48:07.966+05:30"
);
System.out.println("XMLGregorianCalendar/Date is :- \n" + xmlGregorianCalendar);
// 2. convert XMLGregorianCalendar -> GregorianCalendar -> Calendar
GregorianCalendar gregorianCalendar = xmlGregorianCalendar.toGregorianCalendar();
System.out.println("\nGregorianCalendar is :- \n"
+ gregorianCalendar);
// 3. assign GregorianCalendar -> Calendar
Calendar calendar = gregorianCalendar;
System.out.println("\nCalendar is :- \n"
+ calendar);
// 3.1 DateFormatter 1
DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
String formattedTimestampInStr1 = dateFormat.format(gregorianCalendar.getTime());
System.out.println("\nFormatted Date in (dd-MM-yyyy HH:mm:ss) format is :- \n"
+ formattedTimestampInStr1);
// 3.2 DateFormatter 1
dateFormat = new SimpleDateFormat("dd/MMM/yy HH:mm");
String formattedTimestampInStr2 = dateFormat.format(calendar.getTime());
System.out.println("\nFormatted Date in (dd/MMM/yy HH:mm) format is :- \n"
+ formattedTimestampInStr2);
// 3.3 DateFormatter 1
dateFormat = new SimpleDateFormat("EEEE dd MMMM, yyyy hh:mm:ss a z");
String formattedTimestampInStr3 = dateFormat.format(calendar.getTime());
System.out.print("\nFormatted Date in (EEEE dd MMMM, yyyy hh:mm:ss a z) format is :- \n"
+ formattedTimestampInStr3);
}
}
Output:
XMLGregorianCalendar/Date is :-
2022-08-31T05:48:07.966+05:30
GregorianCalendar is :-
java.util.GregorianCalendar[time=?,areFieldsSet=false,areAllFieldsSet=true,
lenient=true,zone=sun.util.calendar.ZoneInfo[id="GMT+05:30",offset=19800000,
dstSavings=0,useDaylight=false,transitions=0,lastRule=null],firstDayOfWeek=1,
minimalDaysInFirstWeek=1,ERA=1,YEAR=2022,MONTH=7,WEEK_OF_YEAR=1,
WEEK_OF_MONTH=1,DAY_OF_MONTH=31,DAY_OF_YEAR=1,DAY_OF_WEEK=5,
DAY_OF_WEEK_IN_MONTH=1,AM_PM=0,HOUR=0,HOUR_OF_DAY=5,MINUTE=48,
SECOND=7,MILLISECOND=966,ZONE_OFFSET=19800000,DST_OFFSET=0]
Calendar is :-
java.util.GregorianCalendar[time=?,areFieldsSet=false,areAllFieldsSet=true,
lenient=true,zone=sun.util.calendar.ZoneInfo[id="GMT+05:30",offset=19800000,
dstSavings=0,useDaylight=false,transitions=0,lastRule=null],firstDayOfWeek=1,
minimalDaysInFirstWeek=1,ERA=1,YEAR=2022,MONTH=7,WEEK_OF_YEAR=1,
WEEK_OF_MONTH=1,DAY_OF_MONTH=31,DAY_OF_YEAR=1,DAY_OF_WEEK=5,
DAY_OF_WEEK_IN_MONTH=1,AM_PM=0,HOUR=0,HOUR_OF_DAY=5,MINUTE=48,
SECOND=7,MILLISECOND=966,ZONE_OFFSET=19800000,DST_OFFSET=0]
Formatted Date in (dd-MM-yyyy HH:mm:ss) format is :-
31-08-2022 05:48:07
Formatted Date in (dd/MMM/yy HH:mm) format is :-
31/Aug/22 05:48
Formatted Date in (EEEE dd MMMM, yyyy hh:mm:ss a z) format is :-
Wednesday 31 August, 2022 05:48:07 am IST
Related Articles:
- Java 8 – How to convert GregorianCalendar to LocalDate and vice-versa ?
- Java 8 – How to convert GregorianCalendar to LocalTime and vice-versa ?
- Java 8 – How to convert GregorianCalendar to LocalDateTime and vice-versa ?
- Java 8 – How to convert GregorianCalendar to ZonedDateTime and vice-versa ?
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- Java 8 – How to convert GregorianCalendar to java.util.Date and vice-versa ?
- Java 8 – How to convert GregorianCalendar to java.sql.Timestamp and vice-versa ?
- Java 8 – How to convert GregorianCalendar to Calendar and vice-versa ?
- Java 8 – How to convert GregorianCalendar to XMLGregorianCalendar and vice-versa ?
- Java – How to convert java.util.Date to String in different formats ?
- Java – How to convert String to java.util.Date in different formats ?
- Java – How to get Date/time with AM/PM marker and Zone ?
- More Java 8 Date/Time API examples
References:
- https://docs.oracle.com/javase/8/docs/api/java/sql/Timestamp.html
- https://docs.oracle.com/javase/8/docs/api/java/util/Date.html
- https://docs.oracle.com/javase/7/docs/api/java/util/Calendar.html
- https://docs.oracle.com/javase/7/docs/api/java/util/GregorianCalendar.html
- https://docs.oracle.com/javase/7/docs/api/java/text/DateFormat.html
- https://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html
- https://docs.oracle.com/javase/8/docs/api/javax/xml/datatype/XMLGregorianCalendar.html
- https://docs.oracle.com/javase/8/docs/api/javax/xml/datatype/DatatypeFactory.html
Happy Coding !!
Happy Learning !!
