CODEWITHSUNDEEP
javadate
codingNubie
codingNubie

Reputation: 67

How to format multiple date type string "2013-08-26T12:00:00.000" or "2013-08-26T12:00:00.000Z" to: "2013-08-26 12:00:00" and to Date object in Java?

I am writing a converter method that would parse an xml string data to java objects. But i am not able to parse dates to date objects. How to format this date string "2013-08-26T12:00:00.000" in the following way: "2013-08-26 12:00:00" to Date object in java?

Note: The input can be of multiple date format like - "2013-08-26T12:00:00.000" or "2013-08-26T12:00:00.000Z". The input dates are of variable formats.

Edited to add the below code snippet. Here is what I tried to do.

public Object fromString(String str) {
    DateFormat dateFormat = DateFormat.getDateInstance();
    try {
        Date date = dateFormat.parse(str);
        return date;
    } catch (ParseException e) {
        e.printStackTrace();
    }
}

Upvotes: 0

Views: 145

Answers (4)

Meno Hochschild
Meno Hochschild

Reputation: 44071

In order to process XML-date-time-strings which are allowed to be of variable precision (sometimes leaving out second- or fraction-part or timezone-offset) the use of SimpleDateFormat is not a good option because then you would only have one pattern. Not flexible.

Alternative for XML:

String xml = "2013-08-26T12:00:00.000"; // maybe optionally with additional timezone offset
javax.xml.datatype.DatatypeFactory factory = javax.xml.datatype.DatatypeFactory.newInstance();
XMLGregorianCalendar xmlGregCal = factory.newXMLGregorianCalendar(xml);
java.util.Date d = xmlGregCal.toGregorianCalendar().getTime();

SimpleDateFormat outputFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String output = outputFormat.format(d);

Watch also out for some overloaded methods to change the timezone settings for parsing and formatting - see the javadoc.

Upvotes: 1

Harmlezz
Harmlezz

Reputation: 8068

You may try this:

public static void main(String[] args) throws Exception {
    String original = "2013-08-26T12:00:00.000";
    Date date = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.S").parse(original);
    String format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(date);
    System.out.printf("Before: %s\nAfter: %s\n", original, format);
}

OUTPUT:

Before: 2013-08-26T12:00:00.000
After:  2013-08-26 12:00:00

Upvotes: 0

Anshu
Anshu

Reputation: 116

You should google these things first. Here you go:

 public static void main(String[] args) {
    String inFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS";
    String outFormat = "yyyy-MM-dd HH:mm:ss";
    SimpleDateFormat sdf = new SimpleDateFormat(inFormat);
    try {
        Date d = sdf.parse("2013-08-26T12:00:00.000");
        sdf.applyPattern(outFormat);
        System.out.println(sdf.format(d));
    } catch (ParseException e) {
        // handle appropriately
        e.printStackTrace();
    }
}

Upvotes: 3

Germann Arlington
Germann Arlington

Reputation: 3353

You can parse any Date-like string to Date object (as long as the the string represents a valid date) using http://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html

There is no point in re-formatting the String.

Upvotes: 2

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