Parse a string to date in specific format

Question

I have a TimeStamp '2013-06-24 10:46:11.0' and I need to cut off the .0 part, so what I did was to use the SimpleDateFormat to parse it to String and back then parse it to date, the first conversion was fine but the second (string to date) throws a java date time.

public void convert(Object object) {
    Date date;
    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    date = object().getDate();
    String formated = format.format(date);
    try {
       date = format.parse(formated);
    } catch (ParseException ex) {
       Logger.getLogger(DlgConsultaFactura.class.getName()).log(Level.SEVERE, null, ex);
    }
}

What I expect is a date like this 2013-06-24 10:46:11, but what I got is this date Mon Jun 24 10:46:11 CDT 2013

Any help will be appreciated. Thanks.

@Andeas : he doesn't use object, he uses object(), which is a method reference. And very likely a bug. — Erik Pragt
– Erik Pragt, Commented Jul 8, 2013 at 19:40
@Erik yepp, recognized it - deleted my comment... nevertheless it looks wrong :) unless he has an object() method ... — Andreas Fester
– Andreas Fester, Commented Jul 8, 2013 at 19:42
Yes. Also the method doesn't return anything, it takes the wrong input parameter. I don't think this can work. — Erik Pragt
– Erik Pragt, Commented Jul 8, 2013 at 19:43
My bad, my method actually gets a list as parameter, I only tried to simplify the code. — Blackmore
– Blackmore, Commented Jul 8, 2013 at 19:47

anubhava · Accepted Answer · 2013-07-08 19:48:07Z

2

Mon Jun 24 10:46:11 CDT 2013 and 2013-06-24 10:46:11 is actually same value. Mon Jun 24 10:46:11 CDT 2013 is as per your default locale.

You're getting confused between date's internal representation and its display format.

To print in 2013-06-24 10:46:11 you can use same SimpleDateFormat object again.

You can use DateFormat#format(Date) to print the date or return the String representation in your desired format i.e. "yyyy-MM-dd HH:mm:ss". Something like this:

String myDt = format.format(date);
// 2013-06-24 10:46:11

edited Jul 8, 2013 at 19:48

answered Jul 8, 2013 at 19:41

anubhava

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4 Comments

Blackmore Over a year ago

But the problem is that I want the right format in a date, if I use SimpleDateformat again it will return a String.

anubhava Over a year ago

@Blackmore: Pls read the first line of my answer. With the return value of parse method You already got a date as 2013-06-24 10:46:11 OR Mon Jun 24 10:46:11 CDT 2013. Both values are same.

Blackmore Over a year ago

I think I gave myself to misunderstood, I know 2013-06-24 10:46:11, Mon Jun 24 10:46:11 CDT 2013 are the same, the problem is the format that returns, When I got the string (2013-06-24 10:46:11) i'm inmediatley trying to parse it to Date, but when I do it returns a different format, I need the right format to get displayed in the screen. I really appreciate your help.

anubhava Over a year ago

I thought I explained in my answer. To display a Date object in a particular format you need to call: SimpleDateFormat#format(Date) method (see example above).

skay- · Accepted Answer · 2013-07-08 19:59:27Z

0

Not the best way but a quick and easy one if you want just the string representation of the date ...

    formated = formated.substring(0, formated.length()-2);

:)

answered Jul 8, 2013 at 19:59

skay-

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2 Comments

Blackmore Over a year ago

Then, How can I parse it to Date keeping the format? Thanks for the help.

Code-Apprentice Over a year ago

@Blackmore The format only makes sense when you have a date represented as a String. When you parse the String to a Date, talking about "format" no longer makes any sense.

user2506840 · Accepted Answer · 2013-07-08 20:01:11Z

0

DateFormat i.e. SimpleDateFormat just formats the date as per your need.

Parse returns the Date representation of the String (or timestamp in your case) passed in. Format returns the String representation of the Date object passed in.

In both the cases , you see the same date just the representation is different.

answered Jul 8, 2013 at 20:01

user2506840

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1 Comment

Blackmore Over a year ago

I know, What I'm trying to do is get an specific format of my date. Thanks for the help.

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