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 classesimport java.util.Calendar;// Main classpublic 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 classesimport java.util.Calendar;// Main classpublic 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
