display Java.util.Date in a specific format

I have the following scenario :

SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
System.out.println(dateFormat.parse("31/05/2011"));

gives an output

Tue May 31 00:00:00 SGT 2011

but I want the output to be

31/05/2011开发者_运维技巧 

I need to use parse here because the dates need to be sorted as Dates and not as String.

Any ideas ??

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How about:

SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
System.out.println(dateFormat.format(dateFormat.parse("31/05/2011")));

> 31/05/2011

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You need to go through SimpleDateFormat.format in order to format the date as a string.

Here's an example that goes from String -> Date -> String.

SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
Date date = dateFormat.parse("31/05/2011");

System.out.println(dateFormat.format(date));   // prints 31/05/2011
//                            ^^^^^^

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Use the SimpleDateFormat.format

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date date = new Date();
String sDate= sdf.format(date);

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You can use simple date format in Java using the code below

SimpleDateFormat simpledatafo = new SimpleDateFormat("dd/MM/yyyy");
Date newDate = new Date();
String expectedDate= simpledatafo.format(newDate);

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It makes no sense, but:

System.out.println(dateFormat.format(dateFormat.parse("31/05/2011")))

SimpleDateFormat.parse() = // parse Date from String
SimpleDateFormat.format() = // format Date into String

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If you want to simply output a date, just use the following:

System.out.printf("Date: %1$te/%1$tm/%1$tY at %1$tH:%1$tM:%1$tS%n", new Date());

As seen here. Or if you want to get the value into a String (for SQL building, for example) you can use:

String formattedDate = String.format("%1$te/%1$tm/%1$tY", new Date());

You can also customize your output by following the Java API on Date/Time conversions.

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java.time

Here’s the modern answer.

    DateTimeFormatter sourceFormatter = DateTimeFormatter.ofPattern("dd/MM/uuuu");
    DateTimeFormatter displayFormatter = DateTimeFormatter
            .ofLocalizedDate(FormatStyle.SHORT)
            .withLocale(Locale.forLanguageTag("zh-SG"));

    String dateString = "31/05/2011";
    LocalDate date = LocalDate.parse(dateString, sourceFormatter);
    System.out.println(date.format(displayFormatter));

Output from this snippet is:

31/05/11

See if you can live with the 2-digit year. Or use FormatStyle.MEDIUM to obtain 2011年5月31日. I recommend you use Java’s built-in date and time formats when you can. It’s easier and lends itself very well to internationalization.

If you need the exact format you gave, just use the source formatter as display formatter too:

    System.out.println(date.format(sourceFormatter));

31/05/2011

I recommend you don’t use SimpleDateFormat. It’s notoriously troublesome and long outdated. Instead I use java.time, the modern Java date and time API.

To obtain a specific format you need to format the parsed date back into a string. Netiher an old-fashioned Date nor a modern LocalDatecan have a format in it.

Link: Oracle tutorial: Date Time explaining how to use java.time.

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You already has this (that's what you entered) parse will parse a date into a giving format and print the full date object (toString).

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This will help you. DateFormat df = new SimpleDateFormat("dd/MM/yyyy"); print (df.format(new Date());

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I had something like this, my suggestion would be to use java for things like this, don't put in boilerplate code

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This looks more compact. Finishes in a single line.

import org.apache.commons.lang3.time.DateFormatUtils;

System.out.println(DateFormatUtils.format(newDate, "yyyy-MM-dd HH:mm:ss"));