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Unparseable date error in Java

I want to convert the system date to yyyy-MM-dd format. There are similar questions in SO. I found that I need to parse the date in input format and then convert to the output format. But I am stuck at the first stage itself. I am not able to parse the system date as such (Sat Apr 25 14:44:15 IST 2015).
Here is my MWE:
import java.util.*;
import java.text.*;
public class Test
{
public static void main(String[] args)
{
try
{
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("EEE MM dd HH:mm:ss aaa YYYY");
date = dateFormat.parse(date.toString());
System.out.println(date);
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
}
}
I get the exception as :
Unparseable date: "Sat Apr 25 14:53:33 IST 2015"

Date object can be converted to string of any date format.
String can be converted to date but it will come only in standard date format's but cant be in the one as you want..
If you want to format system date to yyyy-MM-dd format then use:
Date date = new Date();
SimpleDateFormat dateFormater = new SimpleDateFormat("yyyy-MM-dd");
String date1 = dateFormater.format(date);
As you specified in comment you want to subtract sql date with current date then just convert the sql date to normal date format.
Like this:
String date = your date;
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
Date date1 = dateFormat.parse(date);
Date currentdate = new Date();
Then use calender objects:
Calendar calendar = Calendar.getInstance();
calendar.setTime(date1);
Calendar calendar2 = calendar.getInstance();
calendar2.setTime(currentdate);
long difference = (calendar2.getTimeInMillis() - calendar
.getTimeInMillis()) / 60000;
This will give you the difference between two dates in minutes.

This will work for you
public class Test1 {
public static void main(String[] args) {
try
{
Date date = new Date();
System.out.println(date);
String dateFormat = new SimpleDateFormat("EEE MM dd HH:mm:ss aaa YYYY").format(date);
System.out.println(dateFormat);
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
}
}
Output
Sat Apr 25 15:10:38 IST 2015
Sat 04 25 15:10:38 PM 2015

I think you should do it like that.
Date date = new Date();
String formattedDate = new SimpleDateFormat("yyyy-MM-dd").format(date);
DateFormat format = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH);
date = format.parse(formattedDate);
System.out.println(date);
But you should understand difference between "date" and "date format".

Convert a date from 14 to 2014

How can I format a :
Tue May 21 00:00:00:00 GMT +200 14 <--- Tue May 21 00:00:00:00 GMT
+200 2014
i tried :
StringBuilder myName = new StringBuilder(datum);
myName.setCharAt(datum.length()-4, '2');
myName.setCharAt(datum.length()-3, '0');
Date date= null; DateTimeFormat.getFormat("-- idk ----").parse(myName.toString()); Window.alert(myName.toString());
but i dont know how to define the same date format as the Date class
i think this isnt a good solution is there a better?

I suppose that datum is a Date object.
So, just do:
DateFormat df = new SimpleDateFormat("EEE MMM d HH:mm:ss:SS z yyyy");
System.out.println(df.format(datum));
More info: http://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html.

// getFormatedDate("in which pattern you are sending date", "how we want", date in string form);
example : formatedDate = getFormatedDate("yyyy-MM-dd", "ddMMyyyy", "2014-05-21");
private String getFormatedDate(String baseFormat, String reqFormat, String dateStr) {
String formatedDate = null;
try {
DateFormat fromFormat = new SimpleDateFormat(baseFormat);
fromFormat.setLenient(false);
DateFormat toFormat = new SimpleDateFormat(reqFormat);
toFormat.setLenient(false);
java.util.Date date = fromFormat.parse(dateStr);
formatedDate = toFormat.format(date);
} catch (ParseException ex) {
}
return formatedDate;
}

You have to use date formatter.
Your date formatter should be
DateFormat dateFormat = new SimpleDateFormat("EEE MMM d HH:mm:ss:SS z yyyy");
Then use this formatter to get your desired date.
Just do:
newDate = dateFormat.format(yourOldDate);
Hope this will works.
Get more from:
http://www.mkyong.com/java/java-date-and-calendar-examples/
and http://docs.oracle.com/javase/6/docs/api/java/text/SimpleDateFormat.html
Thanks.

Formatting Date from Date Object with only MM/DD/YYYY

Currently using Parse to obtain a date on an object by using:
Date date = object.getCreatedAt();
The returned String when displaying it in a TextView is this:
Mon Mar 17 22:39:27 CET 2014
However I really only want the MM/DD/YYYY to display like so: 3/17/2014
I've tried this:
Date date = object.getCreatedAt();
SimpleDateFormat originalFormat = new SimpleDateFormat("MMM DDD yyyy");
try {
Date originaldate = originalFormat.parse(date.toString());
finalDate = originaldate.toString();
} catch (java.text.ParseException e1) {
e1.printStackTrace();
}
but keep getting a ParseException for "Unparseable date", any idea what's going on? If I were to simply change this line back to this:
SimpleDateFormat originalFormat = new SimpleDateFormat("EEE MMM DDD HH:mm:ss z yyyy");
Then it prints out the full date again just fine with no parse exception, including all the date stuff I don't want.

Don't use parse method, use format instead :
Date date = object.getCreatedAt();
SimpleDateFormat formater = new SimpleDateFormat("M/d/yyyy");
String datestring = formater.format(date); // value is : 3/17/2014

http://docs.oracle.com/javase/6/docs/api/java/util/Date.html#toString()
java.util.Date.toString() method always returns a String of format
dow mon dd hh:mm:ss zzz yyyy
For example, Thu Jan 10 02:00:00 EET 1992.
Your Date format "MMM DDD yyyy" expects a date String like Jan 10 1992 where 10 represents not 10th day of January but 10th day of year 1992.
Therefore to convert a date to String and convert it back to Date object using your format, you need to do
Date originaldate = originalFormat.parse(originalFormat.parse(date.toString()));
Or to convert Date.toString() to Date object,
SimpleDateFormat toStringFormat = new SimpleDateFormat("dow mon dd hh:mm:ss zzz yyyy");
Date originaldate = toStringFormat.parse(date.toString());
Lastly, if you want a Date string with format like 3/17/2014, the correct format is M/d/yyyy.
Refer to http://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html for help on how to write Date format.

change date format to query database

how do I change date format of the following date
Thu May 17 00:00:00 GMT+05:30 2012
to
2012-05-17 00:00:00
I need it as date and not as string. I am using
new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse("")
But its not giving the result.
Actually I am storing the values date wise. So when someone enters the data for the same date again it should overwrite.
If I pass it as date object into the hibernate query it gives the result. But not always. ON few occasions it inserts again that is it inserts duplicate data for the same date. Befroe entering I am adding a method to check if data exists for that date. criteria.add(Restrictions.eq("date", date));

You shouldn't be doing string manipulation at all here. You've said in comments that it's a date/time field in the database, so why would there be any string conversion involved in your code?
Specify parameters in JDBC as java.sql.Date, java.sql.Timestamp or whatever - and then fetch them that way too. Don't do a string conversion. Ignore whatever format happens to be displayed when you query the database in a tool - don't think of the result as having a "format" at all - they're just dates.

String str ="Thu May 17 00:00:00 GMT+05:30 2012";
DateFormat old_format = new SimpleDateFormat("EEE MMM dd hh:mm:ss z yyyy");
Date newDate = null;
try {
newDate = old_format.parse(str);
} catch (ParseException e) {
e.printStackTrace();
}
DateFormat new_format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String date = new_format.format(newDate);
System.out.println("==>"+date);

Do exactly as you do now but change parse("") to format(theDate)
theDate being the Date object you want to format
See
http://docs.oracle.com/javase/6/docs/api/java/text/DateFormat.html#format(java.util.Date)

String date = "Thu May 17 00:00:00 GMT+05:30 2012";
String oldFormat = "EEE MMM dd hh:mm:ss z yyyy";
String newFormat = "yyyy-MM-dd HH:mm:ss";
SimpleDateFormat sdf1 = new SimpleDateFormat(oldFormat);
SimpleDateFormat sdf2 = new SimpleDateFormat(newFormat);
sdf2.format(sdf1.parse(date))

How to change the date format in Ireport 4.5

I have given text field expression new.java.util.Date() and pattern MMMMM dd, yyyy as the mentioned format.
The date must display like: jan 13, 2012 but it's displaying in some other format: Fri Jan 13 08:30:12 IST 2012.
So how to print the date in the mentioned format. And one thing in preview the date displays correctly as mentioned but inside my application it displays Fri Jan 13 08:30:12 IST 2012 format. Is there any way to make it to work properly?

new SimpleDateFormat("MMM dd, yyyy ").format(new Date())
Put the above line in text field so you will get your Date format

Use this below method..hope it will help to you
public static String getDateTimeForUgcServer(String date)
{
SimpleDateFormat intputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date dt = new Date();
try
{
dt = intputFormat.parse(date);
}
catch (ParseException e)
{
e.printStackTrace();
}
SimpleDateFormat outputFormat = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
String str = outputFormat.format(dt);
return str;
}