Rolling Time Span in Java

In the previous example of adding and subtracting time span we have added and subtracted the time spans accordingly and since add() method automatically do the rolling according to the calendar.

Rolling Time Span in Java

In the previous example of adding and subtracting time span we have added and subtracted the time spans accordingly and since add() method automatically do the rolling according to the calendar.

Rolling Time Span in Java

Rolling Time Span in Java

     

In the previous example of adding and subtracting time span we have added and subtracted the time spans accordingly and since add() method automatically do the rolling according to the calendar.

We can roll up the current date by one day as calendar.roll(Calendar.DATE,true);

For rolling current month up by one we can write code as calendar.roll(Calendar.MONTH,true);

We can also roll year up by one year as calendar.roll(Calendar.YEAR,true); Here the second parameter's Boolean value true means rolling in upward direction and false means downwards.

Here is the full example code of RollingTimeSpan.java as follows:

RollingTimeSpan.java

 import java.text.*;
 import java.util.Calendar;
 import java.util.GregorianCalendar; 

 public class RollingTimeSpan
 {
 public static void main(String[] args)
 {
  // set calendar to 10 DECEMBER 2008
 Calendar calendar = new GregorianCalendar(2008,Calendar.DECEMBER,10);
 System.out.println("Before Rolling date is: ");
 SimpleDateFormat formatter = new SimpleDateFormat("d-MMMM-yyyy hh:mm");
 System.out.println(formatter.format(calendar.getTime()));
 
 System.out.println("-------------- Rolling -----------------");
 // Rolling Date 
  calendar.roll(Calendar.DATE,true); 
 // Rolling Month 
  calendar.roll(Calendar.MONTH,true);
 // Rolling Year 
  calendar.roll(Calendar.YEAR,true);  
 
 System.out.println("After Rolling 1 day 1 Month and 1 Year date is: ");
 formatter = new SimpleDateFormat("d-MMMM-yyyy hh:mm");
 System.out.println(formatter.format(calendar.getTime()));
 }  
 }

Output:

C:\DateExample>javac RollingTimeSpan.java

C:\DateExample>java RollingTimeSpan
Before Rolling date is:
10-December-2008 12:00
-------------- Rolling -----------------
After Rolling 1 day 1 Month and 1 Year date is:
11-January-2009 12:00

Download Source Code

Tutorials

  1. Simple Date example
  2. Comparing two Dates in Java
  3. Comparing two Dates in Java with the use of after method
  4. Comparing two Dates in Java with the use of before method
  5. Getting date by time
  6. Getting time in Milliseconds
  7. Simple date formatter example
  8. Example program to change Date formatting Symbols
  9. Example program to get all the available time zones
  10. Time Format Example
  11. TimeZone Format Example
  12. Second Format Example
  13. Minutes Format Example
  14. Parsing Date Example
  15. Parsing Date And Time Example
  16. Day Format Example
  17. Week Days Format Example
  18. Month Format Example
  19. Year Format Example
  20. Formatting Date for a Locale Example
  21. Hour Format Example
  22. Date Format Example
  23. Java Time Zone Example
  24. Adding time span example
  25. Java Subtracting Time Span
  26. Java Set Default Locale
  27. Rolling Time Span in Java
  28. Java Date Example
  29. Java Date
  30. Java Date
  31. Time Format Example
  32. Simple Date Format Example
  33. Comparing two dates in java