Java Calendar Add or substract seconds to current time

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

  
 import java.util.Calendar;  
 public class AddSecondsToCurrentDate {  
  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 seconds to current date using Calendar.add method  
   now.add(Calendar.SECOND,100);  
   System.out.println("New time after adding 100 seconds : "  
            + now.get(Calendar.HOUR_OF_DAY)  
            + ":"  
            + now.get(Calendar.MINUTE)  
            + ":"  
            + now.get(Calendar.SECOND));  
   /*  
    * Java Calendar class automatically adjust the date,hour or minutesaccordingly  
    * if adding seconds to the current time causes current minute,  
    * hour or date to be changed.  
    */  
   //substract seconds from current time using Calendar.add method  
   now = Calendar.getInstance();  
   now.add(Calendar.SECOND, -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 : 16:37:13
New time after adding 100 seconds : 16:38:53
Time before 50 minutes : 16:36:23

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