Java.util.Calendar.compareTo() Method

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Description

The java.util.Calendar.compareTo() method compares the time values (millisecond offsets) between the Calendar object and anotherCalendar object.

Declaration

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

public int compareTo(Calendar anotherCalendar)

Parameters

  • anotherCalendar -- the Calendar object to be compared.

Return Value

The method returns 0 if the time represented by the argument is equal to the time represented by this Calendar object; or a value less than 0 if the time of this Calendar is before the time represented by the argument; or a value greater than 0 if the time of this Calendar is after the time represented.

Exception

  • NullPointerException - if the specified Calendar is null.

  • IllegalArgumentException - if the time value of the specified Calendar object can't be obtained

Example

The following example shows the usage of java.util.calendar.compareTo() method.

package com.tutorialspoint;

import java.util.*;

public class CalendarDemo {

   public static void main(String[] args) {

      // create two calendar at the different dates
      Calendar cal1 = new GregorianCalendar(2015, 8, 15);
      Calendar cal2 = new GregorianCalendar(2008, 1, 02);

      // compare the time values represented by two calendar objects.
      int i = cal1.compareTo(cal2);

      // return positive value if equals else return negative value
      System.out.println("The result is :"+i);

      // compare again but with the two calendars swapped
      int j = cal2.compareTo(cal);

      // return positive value if equals else return negative value
      System.out.println("The result is :" + j);

   }
}

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

The result is :1
The result is :-1



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