The add() method of Calendar class present inside is used to add or subtract from the given calendar field(int field), a specific amount of time(int amt), based on the calendar’s rules.
Syntax:
public abstract void add(int field, int amt)
Parameters: The method takes two parameters:
- The field of the calendar on which the operation is to be performed. (Integer type)
- The amount of time needed to be subtracted. (Integer type)
Return Value: The method does not return any value.
Example 1:
Java
// Java Program to Illustrate add() Method // of Calendar class // Importing required classes import java.util.Calendar;
// Main class public class CalendarClassDemo {
// Main driver method
public static void main(String args[])
{
// Creating a Calendar class object
Calendar calndr = Calendar.getInstance();
// Displaying the current date
// using getTime() method
System.out.println( "Current Date: "
+ calndr.getTime());
// Adding 50 days to the
// Current Calendar
// using add() method
calndr.add(Calendar.DATE, 50 );
// Displaying the date now using getTime() method
System.out.println( "After 50 days: "
+ calndr.getTime());
// Subtracting 6 months from
// the Current calendar
calndr.add(Calendar.MONTH, - 6 );
// Displaying the date now using getTime() method
System.out.println( "6 months ago it was: "
+ calndr.getTime());
// Subtracting 2 year from
// the Current calendar
calndr.add(Calendar.YEAR, - 2 );
// Displaying the date now using getTime() method
System.out.println( "2 years ago it was: "
+ calndr.getTime());
}
} |
Output:
Current Date: Tue Feb 12 10:54:21 UTC 2019 After 50 days: Wed Apr 03 10:54:21 UTC 2019 6 months ago it was: Wed Oct 03 10:54:21 UTC 2018 2 years ago it was: Mon Oct 03 10:54:21 UTC 2016
Example 2:
Java
// Java Program to Illustrate add() Method // of Calendar class // Importing required classes import java.util.Calendar;
// Main class public class GFG {
// Main driver method
public static void main(String args[])
{
// Creating a calendar object
Calendar calndr = Calendar.getInstance();
// Displaying the current date
// using getTime() method
System.out.println( "Current Date: "
+ calndr.getTime());
// Adding 30 days to the current calendar
// using add() method
calndr.add(Calendar.DATE, 30 );
// Printing the corresponding date
System.out.println( "After 30 days: "
+ calndr.getTime());
// Subtracting 3 months from the current calendar
calndr.add(Calendar.MONTH, - 3 );
// Printing the corresponding date
System.out.println( "3 months ago it was: "
+ calndr.getTime());
// Subtracting 10 years from
// the Current calendar
calndr.add(Calendar.YEAR, - 10 );
// Printing the corresponding date
System.out.println( "10 years ago it was: "
+ calndr.getTime());
}
} |
Output:
Current Date: Tue Feb 12 10:54:24 UTC 2019 After 30 days: Thu Mar 14 10:54:24 UTC 2019 3 months ago it was: Fri Dec 14 10:54:24 UTC 2018 10 years ago it was: Sun Dec 14 10:54:24 UTC 2008