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Convert String to Date format

Mahi Ranga
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Joined: Jan 27, 2011
Posts: 35
Hi All,

I am facing one problem.that is convert String to Date Format.

my Programme is:

String dateString = "2011/03/28";

SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
Date convertedDate = dateFormat.parse(dateString);

System.out.println(" " + convertedDate);

output of this example is:Mon Mar 28 00:00:00 GMT+05:30 2011
but i want yyyy/MM/dd output.

Please help me.

Regards
Mahi Ranga.
Mohamed Sanaulla
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Joined: Sep 08, 2007
Posts: 3071
    
  33

The best place to start is to read the JavaDatesFaq


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Claudiu Chelemen
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Joined: Mar 25, 2011
Posts: 71

Why don't you print your initial dateString variable?

Otherwise, you could use the same SimpleDateFormat object to format the output:




Cheers!
Jesper de Jong
Java Cowboy
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Joined: Aug 16, 2005
Posts: 14190
    
  20

One important thing to understand is that Date objects by themselves do not have any format. So, if you parse a string into a Date object, using for example a SimpleDateFormat object with a certain format, then the resulting Date object will not somehow remember the format that the original string had.

If you print the content of a Date object, by simply printing it out like this:

then the date will be printed using some default format that looks like "Mon Mar 28 00:00:00 GMT+05:30 2011" (what you're seeing).

To print a date with a certain format, you'd have to convert it back to a string again. You can do that by calling the format() method of your SimpleDateFormat object. However, it doesn't make much sense to first parse the string into a Date object, and then doing exactly the reverse immediately. You could just as well just print the string directly and save the work of parsing and formatting it.


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Chris Beckey
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Joined: Jun 09, 2006
Posts: 116

Just to add to what Jesper has stated,
A java.util.Date is really just a long value (milliseconds since 01Jan1970 GMT, if memory serves correct), and does not carry any concept of calendar date in the way we usually think of a date. The string representations that you are seeing are produced by the default Locale and its associated Calendar and DateFormat instances. If you want some specific formatting, create a SimpleDateFormat and use its format() method or get the Locale's date formats and use those.
 
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