Java Calendar add() Method

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Description

The Java Calendar add() adds or subtracts the specified amount of time (amount) to the given calendar field (field), based on the calendar's rules.

Declaration

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

public abstract void add(int field,int amount)

Parameters

• field − the calendar field.

• amount −the amount of date or time to be added to the field.

Return Value

This method does not return any value.

Exception

NA

Adding Days to Current Dated Calendar Instance Example

The following example shows the usage of Java Calendar add() method. We're creating a Calendar instance of current date and adding 20 days to it using add method and then printing the updated date.

package com.tutorialspoint;
import java.util.Calendar;

public class CalendarDemo {
   public static void main(String[] args) {
   
      // create a calendar
      Calendar cal = Calendar.getInstance();

      // print current date
      System.out.println("The current date is : " + cal.getTime());

      // add 20 days to the calendar
      cal.add(Calendar.DATE, 20);
      System.out.println("20 days later: " + cal.getTime());
   }
}

Output

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

The current date is : Fri Sep 23 14:27:57 IST 2022
20 days later: Thu Oct 13 14:27:57 IST 2022

Subtracting Months to Current Dated Calendar Instance Example

The following example shows the usage of Java Calendar add() method. We're creating a Calendar instance of current date and subtracting 2 months from it using add method and then printing the updated date.

package com.tutorialspoint;
import java.util.Calendar;

public class CalendarDemo {
   public static void main(String[] args) {
   
      // create a calendar
      Calendar cal = Calendar.getInstance();

      // print current date
      System.out.println("The current date is : " + cal.getTime());

      // subtract 2 months from the calendar
      cal.add(Calendar.MONTH, -2);
      System.out.println("2 months ago: " + cal.getTime());
   }
}

Output

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

The current date is : Fri Sep 23 14:28:22 IST 2022
2 months ago: Sat Jul 23 14:28:22 IST 2022

Subtracting Years from Current Dated Calendar Instance Example

The following example shows the usage of Java Calendar add() method. We're creating a Calendar instance of current date and subtracting 5 years from it using add method and then printing the updated date.

package com.tutorialspoint;
import java.util.Calendar;

public class CalendarDemo {
   public static void main(String[] args) {
   
      // create a calendar
      Calendar cal = Calendar.getInstance();

      // print current date
      System.out.println("The current date is : " + cal.getTime());

      // subtract 5 year from the calendar
      cal.add(Calendar.YEAR, -5);
      System.out.println("5 years ago: " + cal.getTime());
   }
}

Output

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

The current date is : Fri Sep 23 14:28:53 IST 2022
5 years ago: Sat Sep 23 14:28:53 IST 2017