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Java Calendar add() Method with Example

Calendar Class add() method: Here, we are going to learn about the add() method of Calendar Class with its syntax and example.
Submitted by Preeti Jain, on January 23, 2020

Calendar Class add() method

  • add() method is available in java.util package.
  • add() method is used to perform add or subtract the given amount of time to the given cal_fi (calendar field).
  • add() method is a non-static method, it is accessible with the class object and if we try to access the method with the class name then we will get an error.
  • add() method does not throw an exception at the time of adding or subtracting the given time to a given calendar field.

Syntax:

    public abstract void add(int cal_fi, int  time);

Parameter(s):

  • int cal_fi – represents the calendar field.
  • int amt – represents the amount of time to be added or subtracted to the calendar field.

Return value:

The return type of the method is void, it returns nothing.

Example:

// Java Program to demonstrate the example of
// void add(int cal_fi,int amt) method of Calendar

import java.util.*;

public class AddOfCalendar {
    public static void main(String[] args) {
        // Instantiating a Calendar object
        Calendar ca = Calendar.getInstance();

        // Display current calendar
        System.out.println("ca.getTime(): " + ca.getTime());

        // By using add() method is to substract 2 years
        // to the current calendar
        ca.add(Calendar.YEAR, -2);

        // Display Update Calendar
        System.out.println("cal.add(Calendar.YEAR, -2): " + ca.getTime());

        // By using add() method is to add 2 months
        // to the current calendar
        ca.add(Calendar.MONTH, 2);

        // Display Update Calendar
        System.out.println("cal.add(Calendar.MONTH, 2): " + ca.getTime());

        // By using add() method is to substract 2 days
        // to the current calendar
        ca.add(Calendar.DATE, -2);

        // Display Update Calendar
        System.out.println("cal.add(Calendar.DATE, -2): " + ca.getTime());
    }
}

Output

ca.getTime(): Thu Jan 23 11:06:12 GMT 2020
cal.add(Calendar.YEAR, -2): Tue Jan 23 11:06:12 GMT 2018
cal.add(Calendar.MONTH, 2): Fri Mar 23 11:06:12 GMT 2018
cal.add(Calendar.DATE, -2): Wed Mar 21 11:06:12 GMT 2018






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