year « Calendar « Java Data Type Q&A

1. How can I build a list of days, months, years from a calendar object in Java?

I want to build a date widget for a form, which has a select list of months, days, years. since the list is different based on the month and year, i ...

2. What is the accepted way to replace java.util.Date(year,month,day)

I'm trying to do something really simple, but starting to realize that dates in Java are a bit of minefield. All I want is to get passed groups of three ...

3. Java - How to get current year?

I want to know the current Date and Time. The code

represents a date and time of the system on which the program is running and the system date can be wrong. So Is ...

4. Java calculate days in year

Is there any handy method built in Java to calculate how many days were/will be in a specific year (as in was it a long (366 days) or short (365 days) ...

5. Why Java Calendar set(int year, int month, int date) not returning correct date?

According to doc, calendar set() is:

set(int year, int month, int date) 
Sets the values for the calendar fields YEAR, MONTH, and DAY_OF_MONTH.

6. Is it possible to create a DateFormatter which converts a two-digit year into a four-digit year?

In my Java application I use a DateFormat instance to parse date inputs.

DateFormat fmt;
fmt = DateFormat.getDateInstance(DateFormat.DEFAULT)  // dd.MM.yyyy for de_DE
The problem is that the user insists to enter dates in ...

7. Calculate leap year in Java

This was homework, and I have already received my grade, but I did not implement leap years in my code. This is a simple program that displays the numbers in a ...

8. Getting the number of days, weeks and years when the start date and the end date are given in java

Im new to java. What i want is when i pass the start date and the end date to a funtion as parameteres i want to get the number of days, ...

9. Calendar set YEAR issue

I tried the following piece of code:

Calendar c1 = Calendar.getInstance();
c1.set(Calendar.YEAR, 0);
c1.set(Calendar.DAY_OF_YEAR, 1);
Date d1 = c1.getTime();

Calendar c2 = Calendar.getInstance();
c2.set(Calendar.YEAR, 2001);
c2.set(Calendar.DAY_OF_YEAR, 1);

Calendar c3 = Calendar.getInstance();
c3.set(Calendar.YEAR, 2000);
c3.set(Calendar.DAY_OF_YEAR, 1);
Date d2 = c3.getTime();

Calendar c4 = Calendar.getInstance();
c4.set(Calendar.YEAR, ...

10. Java util Date & Calendar - 1900 years

Hello , I am creating a calendar object and am setting values such as : year , date , month , hour , minute and seconds . Here is the code : SimpleTimeZone tz = new SimpleTimeZone(28800000, "CCT"); Calendar cal = Calendar.getInstance(tz); cal.set(2006,05,21,23,00,00); System.out.println(" cal.getTime = " + cal.getTime()); Date dt = new Date(cal.get(Calendar.YEAR),cal.get(Calendar.MONTH),cal.get(Calendar.DATE),cal.get(Calendar.HOUR_OF_DAY),cal.get(Calendar.MINUTE),cal.get(Calendar.SECOND)); System.out.println("whats the date = " + dt); ...

11. pull a year from a Calendar object

So, this would give me the year as an int value, right? int theYear = theStartDate.get(Calendar.YEAR); Eclipse tells me the syntax is correct, but I just want to be sure that I am getting a value that I can use. My goal is to compare the year from theStartDate to another year. I think you have given me what I need. ...

12. camparison of YEAR attibute of Calendar

This is what you're doing wrong: currentCalendar.get(Calendar.YEAR+1) should be: currentCalendar.get(Calendar.YEAR) + 1 currentCalendar.get(Calendar.YEAR-1) should be: currentCalendar.get(Calendar.YEAR) - 1 But even if you change this, your method is most likely not going to do what you expect it to do (check if the date entered is within one year from now into the past or the future). Looking at just the year ...

13. Sorting two calendar years

14. How to get weeks for a particular year with Calendar object

How to get weeks for a particular year with Calendar object? What I want is, starting from the first week of a particular year till the end, I need the start date of all the weeks considering Sunday as the first day. For eg. For year 2011 starting from month of January I need all the start dates of every week. ...

15. Leap Year Calendar

I am working on a project where the user enters a year. The string is then converted into an int and goes through a series of tests to see if it is a leap year or not. The problem I am having is when the user inputs letters when they are supposed to enter numbers. This gives the "java.lang.NumberFormatException" error. I ...

16. Year problem in Calendar

From simple date format documentation: For parsing with the abbreviated year pattern ("y" or "yy"), SimpleDateFormat must interpret the abbreviated year relative to some century. It does this by adjusting dates to be within 80 years before and 20 years after the time the SimpleDateFormat instance is created. For example, using a pattern of "MM/dd/yy" and a SimpleDateFormat instance created on ...

17. Problem with Calendar Object in Leap Year

public static void main(String[] argc){ Calendar calendar = Calendar.getInstance(); System.out.println( "***FINAL CALENDAR OBJECT ****** " + printCalendar(calendar)); calendar.set( Calendar.YEAR, 2008); calendar.set( Calendar.MONTH, 2); calendar.set( Calendar.DATE, 29); calendar.set( Calendar.HOUR, 17); calendar.set( Calendar.MINUTE, 35); System.out.println( "***FINAL CALENDAR OBJECT ****** " + printCalendar(calendar)); } private static String printCalendar(Calendar calendar){ SimpleDateFormat sdf = new SimpleDateFormat("d MMM yyyy hh:mm aaa"); String date = sdf.format(calendar.getTime()); return date; ...

18. How to Get dates of sundays in a year Using Calendar Class In Java.util

Hi, The requirement of my project is as such that i have to get all the dates in a year on which the sunday i would like to know how can make use of Calender Class(i.e what r all the methods that i can use) from java.util package so that i can meet the requirement of the project. Thanq

19. Calendar.HOUR , Calendar.DAY_OF_YEAR and so on

System.out.println("HOUR:"+Calendar.HOUR); System.out.println(DAY_OF_YEAR:"+Calendar.DAY_OF_YEAR); System.out.println("WEEK_OF_YEAR:"+Calendar.WEEK_OF_YEAR); System.out.println("MONTH:"+Calendar.MONTH); System.out.println("YEAR:"+Calendar.YEAR); Output: 10 6 3 2 1 hi, Can anyone explain me why these constants in Calendar class have been given these constant values that is show in output. I did read the Java doc for each of the constant values in Calendar class But i could nto understand it. Can anyone explain it Thanks Deepak */ ...