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 ... |
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 ... |
I want to know the current Date and Time.
The code
Calendar.getInstance();
represents a date and time of the system on which the program is running and the system date can be wrong.
So Is ... |
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) ... |
According to doc, calendar set() is:
http://download.oracle.com/javase/1.5.0/docs/api/java/util/Calendar.html
set(int year, int month, int date)
Sets the values for the calendar fields YEAR, MONTH, and DAY_OF_MONTH.
code:
...
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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 ... |
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 ... |
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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, ... |
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.setTime(d1);
c2.set(Calendar.YEAR, 2001);
c2.set(Calendar.DAY_OF_YEAR, 1);
System.out.println(c2.getTime().toString());
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.setTime(d2);
c4.set(Calendar.YEAR, ...
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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); ... |
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. ... |
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 ... |
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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. ... |
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 ... |
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 ... |
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; ... |
Hi, The requirement of my project is as such that i have to get all the dates in a year on which the sunday falls.so 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 |
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 */ ... |