Add or substract minutes to current time using Java Calendar

Add or substract minutes to current time using Java Calendar

/*
Add or substract minutes to current time using Java Calendar
This example shows how to add or substract minutes in current time
using Java Calendar class.
*/

import java.util.Calendar;

public class AddMinutesToCurrentDate {

public static void main(String[] args) {

//create Calendar instance
Calendar now = Calendar.getInstance();

System.out.println("Current time : " + now.get(Calendar.HOUR_OF_DAY)
+ ":"
+ now.get(Calendar.MINUTE)
+ ":"
+ now.get(Calendar.SECOND));

//add minutes to current date using Calendar.add method
now.add(Calendar.MINUTE,20);

System.out.println("New time after adding 20 minutes : "
+ now.get(Calendar.HOUR_OF_DAY)
+ ":"
+ now.get(Calendar.MINUTE)
+ ":"
+ now.get(Calendar.SECOND));

/*
* Java Calendar class automatically adjust the date or hour accordingly
if adding minutes to the current time causes current hour or date to be changed.
*/


//substract minutes from current date using Calendar.add method
now = Calendar.getInstance();
now.add(Calendar.MINUTE, -50);

System.out.println("Time before 50 minutes : " + now.get(Calendar.HOUR_OF_DAY)
+ ":"
+ now.get(Calendar.MINUTE)
+ ":"
+ now.get(Calendar.SECOND));

}
}

/*
Typical output would be
Current time : 16:34:11
New time after adding 20 minutes : 16:54:11
Time before 25 minutes : 15:44:11
*/