I have My Database data in this format
18-NOV-10
I have to pass the same format into java.util.Date like this
Date date = new java.util.Date(dateformater);
so that the result of java.util.Date is like this 18-NOV-10
Is this possible ??
I tried this way
String strDate = "12-NOV-07";
SimpleDateFormat sdfSource = new SimpleDateFormat("dd-MMM-yy");
Date date = sdfSource.parse(strDate);
System.out.println(date);
But i am getting the result as "Mon Nov 12 00:00:00 IST 2007 " which i want it only
12-NOV-07"
You can use java.text.DateFormat (actually SimpleDateFormat) to get you where you want to go, but maybe you shouldn't be storing the dates as strings in your database. It will do output and parsing.
SimpleDateFormat sdf =
new SimpleDateFormat("DD-MMM-YY");
Date parsed = sdf.parse(dateString);
See http://javatechniques.com/blog/dateformat-and-simpledateformat-examples/
Once you get the Date, you can turn it into the format you want but it will be held in memory as a Date object. You can get it in the form you want using
String dateString = sdf.format(parsed);
As others have pointed out, you should probably store your dates as dates, not strings; nevertheless...
If you want to turn a Date back into a string in that format you can use the following:
DateFormat formatter = new SimpleDateFormat("dd-MMM-yy");
Date date = new Date();
String dateStr = formatter.format(date); // Gives "22-May-11"
If you need MAY instead of May, just use toUpperCase() on the resultant string.
DateFormat sdf = new SimpleDateFormat("dd-MMM-yy");
Date d = sdf.parse("18-NOV-10");
Try System.out.println(sdfSource.format(date).toUpperCase()); instead. The Date object will always have a time component to it; there is no way to "disable" that feature. What you can do instead is to ignore it in your calculations and display. If all Date objects you use are set to the same time of the day, then you can safely ignore the effect of the time component in your comparisons. If you look carefully, the time component of your Date object is set to midnight.
Related
I have a string like this 210115 I want to represent it as 21:01:15 any ideas?.
I tried using Gregorian calendar but it adds date to it which I don't want
SimpleDateFormat sdf = new SimpleDateFormat("HHmmss");
Date date = new Date();
try{
date = sdf.parse("210115");
}
catch(Exception e){
}
Calendar calendar = GregorianCalendar.getInstance();
calendar.setTime(date);
System.out.print(calendar.getTime());
Output is Thu Jan 01 21:01:15 UTC 1970 but what I want is just 21:01:15
Thanks.
To output a formatted date, you use another SimpleDateFormat object with a pattern with the format you want.
In this case, it sounds like you might want to use something like
SimpleDateFormat outputFormat = new SimpleDateFormat("HH:mm:ss");
System.out.println( outputFormat.format(date) );
So what you want is just a time, without time zone. I would recommend using the LocalTime class, which is exactly that, instead of the Date class.
LocalTime time = LocalTime.parse("210115", DateTimeFormatter.ofPattern("HHmmss"));
If u r getting the date string in "210115" this format and you want it in "21:01:15" format then why are you using date format.
Simply do string operation as:
String time="210115";
String newtime=time.substring(0,2)+":"+time.substring(2,4)+":"+time.substring(4,6);
System.out.println(newtime);
you will get the required format.21:01:15
How can i get data in format "YYYY-MM-DD 00:00:00.0" using class Date (it's extremly important to use exactly this class)?
I tried to do everything i can think of:
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
df.format(date)
and
String pattern = "yyyy-MM-dd HH:mm:ss.S";
SimpleDateFormat format = new SimpleDateFormat(pattern);
try {
Date date = format.parse("2011-01-18 00:00:00.0");
} catch (ParseException e) {
e.printStackTrace();
}
byt when i print date using logger i get this format "Tue Sep 30 00:00:00 MSK 1913".
Try this
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.S");
Date date = format.parse("2011-01-18 00:00:00.0");
System.out.println(format.format(date));
Are you sure you want the hours, minutes, secs to be zeroes?
Or do you mean the pattern yyyy-MM-dd HH:mm:ss ?
The date class is always independent of the formatting. It only needs to be translated when you print it, like this:
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String out = df.format(date)
System.out.println(out);
Or do you want to strip the time out of the date object? or something.
You are confused by Date.toString() and SimpleDateFormat.format()
An object of Date (java.util.Date) has no format information. If you call date.toString(), (which is called by your logger), you got default representation of this object, you have seen what it is.
However, SimpleDateFormat.format() will give you a string as return value, this value will format the Date object with a pattern defined by SimpleDateFormat.
In your code, you first parsed the string, with certain pattern, to get the date object. If it was successful, you got the Date object, here, for this date object, you don't have any format information, even if you have defined a pattern to parse the input string. If you want to print/output (to string again) the date object, you have to use the SimpleDateFormat.format() method.
I hope the below one will solve your problem when you need to do for dynamic dates.
Date today = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd 00:00:00");
String formattedDate = sdf.format(today);
System.out.println(formattedDate);
//Above line output (formatted String object) is 2017-12-29 00:00:00
System.out.println(format.format(formattedDate));
//Above line output(parsed Date object) is Fri Dec 29 00:00:00 IST 2017
For Date object you can't get the output as yyyy-MM-dd 00:00:00, but you will get this format in String object type.
I want to store today's date in the format yyyy-mm-dd. before storing I have took today's date,formatted it and again parse the formatted string to date. It gives the output date in a different format other than what I want. How can i get the date, format it in 'yyyy-mm-dd'
and again convert it into date and want the output in the format 'yyyy-mm-dd'.Please find the below code and tell me where I am wrong
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
java.util.Date date = new java.util.Date();
java.util.Date date1;
String datestring=dateFormat.format(date);
try {
date1=dateFormat.parse(datestring);
System.out.print(date1);
} catch (ParseException ex) {
Logger.getLogger(accordcclass.class.getName()).log(Level.SEVERE, null, ex);
}
The output for the above code I get is
Thu Mar 07 00:00:00 GMT 2013. But I want the output as 2013-01-07
I had the same problem, this is what I did:
DateFormat inputDateFormat = new SimpleDateFormat("dd-MMM-yyyy HH:mm");
DateFormat outputDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
System.out.println(outputDateFormat.format(inputDateFormat.parse("09-SEP-2013 10:00")));
That way I can parse the date in the original format and output it in the database compatible format.
There is the posibility of using PreparedStatement as someone mentiones before but I don't want to.
Don't use a Date object to print, use directly your datestring variable. Using a Date will call toString which will be formatted using the Locale.
Edit : Adding that if you want to store your Date variable with a format, it doesn't work that way. A Date doesn't hold a format, it just represents the time. How you show it in a GUI, console or anywhere else is where you need to specify a format if you want it to differ from the current Locale format.
You're using the DateFormat to format and reparse.
You don't need to re-parse. Simply use the DateFormat only to format.
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
java.util.Date date = new java.util.Date();
String datestring=dateFormat.format(date);
System.out.println( datestring );
I am getting the date time in "1/23/2013 6:57:17 AM" format and need to convert it into "2012-01-01T12:00:00" format. I could have solved the issue by using string functions and separating the date and time and dealing with them individually. But the problem is compunded by the fact that the date format is M/D/YYYY and even time has only h:mm:ss which means i cannot assume the number of characters before each delimiter.
I hope someone has dealt with something like this before. Thanks.
No, String functions are not the way to go.
I'd recommend using two DateFormat instances: one for the source format and another for the target format.
DateFormat source = new SimpleDateFormat("MM/dd/yyyy hh:mm:ss a");
source.setLenient(false);
DateFormat target = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
target.setLenient(false);
String dateAsString = "1/23/2013 12:00:00 AM";
Date d = source.parse(dateAsString);
System.out.println(target.format(d));
How can I take a string in a format such as: 2008-06-02 00:00:00.0 and convert it to: 02-Jun-2008?
Can I somehow take the original string, convert it to a Date object, then use a formatter to get the final output (rather than parsing the string myself)? Thanks!
You can use SimpleDateFormat to convert between a String and a Date object and vice versa based on a pattern. Click the API link, you'll see patterns being explained in detail. A 4-digit year can be represented with yyyy, a 3-character month abbreviation can be represented with MMM and so on.
First you need to parse the String of the first format into a Date object:
SimpleDateFormat sdf1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
Date date = sdf1.parse(inputString);
Then you need to format the Date into a String of the second format:
SimpleDateFormat sdf2 = new SimpleDateFormat("dd-MMM-yyyy", Locale.ENGLISH);
String outputString = sdf2.format(date);
Note that you need to take the Locale into account as well to get the month to be printed in English, else it will use the platform's default locale to translate the month.
Use 2 instances of SimpleDateFormat class. One for converting your input string to date and second to convert date back to string but in another format.
Here is an example of using SimpleDateFormat.
DateFormat startFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.S");
DateFormat endFormat = new SimpleDateFormat("dd-MM-yyyy");
String outputString = null;
try {
Date date = startFormat.parse(inputString);
outputString = endFormat.format(date);
} catch(ParseException pe) {
throw new IllegalArgumentException(inputString + " is not properly formated.", pe);
}
You can definitely use SimpleDateFormat class like others have recommended.
Another suggestion if it applies in your case. If you are getting this data from a sql query you can also use to_char() method to format it in the query itself. For example: to_char(column_name,'DD-MON-YYYY')