Java Calendar clone() Method

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Description

The Java Calendar clone() returns a copy of this Calendar object. The operation performed on clone object are not reflected on the original calendar object.

Declaration

Following is the declaration for java.util.Calendar.clone() method

public Object clone()

Parameters

NA

Return Value

This method does not return any value.

Exception

NA

Cloning a given Calendar Instance Example

The following example shows the usage of Java Calendar clone() method. We're creating a GregorianCalendar instance. We're creating a clone of it using clone() method and printing it.

package com.tutorialspoint;

import java.util.Calendar;
import java.util.GregorianCalendar;

public class CalendarDemo {
   public static void main(String[] args) {

      // create new calendar at specific date.
      Calendar cal = new GregorianCalendar(2008, 05, 20);

      // print date for default value
      System.out.println("Past calendar : " + cal.getTime());

      // create a clone of first cal
      Calendar cal2 = (Calendar) cal.clone();

      // display the copy
      System.out.println("Cloned calendar : " + cal2.getTime());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Past calendar : Fri Jun 20 00:00:00 IST 2008
Cloned calendar : Fri Jun 20 00:00:00 IST 2008

Cloning a given GregorianCalendar Instance Example

The following example shows the usage of Java Calendar clone() method. We're creating a GregorianCalendar instance. We're creating a clone of it using clone() method. Clone calendar is modified and both the calendars are printed.

package com.tutorialspoint;

import java.util.Calendar;
import java.util.GregorianCalendar;

public class CalendarDemo {
   public static void main(String[] args) {

      // create new calendar at specific date.
      Calendar cal = new GregorianCalendar(2008, 05, 20);

      // create a clone of first cal
      Calendar cal2 = (Calendar) cal.clone();

      cal2.set(Calendar.YEAR, 2025);
      
      // print date for default value
      System.out.println("Past calendar : " + cal.getTime());
      // display the clone calendar
      System.out.println("Cloned calendar : " + cal2.getTime());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Past calendar : Fri Jun 20 00:00:00 IST 2008
Cloned calendar : Fri Jun 20 00:00:00 IST 2025

Cloning a Current Dated Calendar Instance Example

The following example shows the usage of Java Calendar clone() method. We're creating a Calendar instance of current date. We're creating a clone of it using clone() method. Clone calendar is modified and both the calendars are printed.

package com.tutorialspoint;

import java.util.Calendar;

public class CalendarDemo {
   public static void main(String[] args) {

      // create new calendar of current date
      Calendar cal = Calendar.getInstance();

      // create a clone of first cal
      Calendar cal2 = (Calendar) cal.clone();

      cal2.set(Calendar.YEAR, 2025);
      
      // print date for default value
      System.out.println("Past calendar : " + cal.getTime());
      // display the clone calendar
      System.out.println("Cloned calendar : " + cal2.getTime());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Past calendar : Fri Sep 23 15:14:08 IST 2022
Cloned calendar : Tue Sep 23 15:14:08 IST 2025