How to get formatted date into p:calendar

Question

I am developing a JSF and primefaces application. In my some.xhtml file where I put p: calendar tag and I want to set its default value as current date (format e.g:01-09-2014). I have written private Date startDate; in backing bean.

<p:calendar value="#{bean.startDate}">

When I don't write below code and just assign private Date startDate = Calendar.getInstance(); it gives me default value(MON Sep 1 00:00:00 EST 2014) but not in proper format (01-09-2014) which I really want. So my question is that how to set date in custom format (01-09-2014) and assign it to Date object private Date startDate = this.defaultDate(); (see below:) to get default value in clientside with this(01-09-2014) format.

I am using jdk 1.7.

private Date startDate = this.defaultDate();
private Date defaultDate() {
    Date defaultDate = null;
    try {
        DateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");
        defaultDate = sdf.parse(sdf.format(Calendar.getInstance().getTime()));
    } catch (Exception e) {
         e.printStackTrace();
    }
    return defaultDate;
}

@amitbhardwaj:- Please go through the code. Although I agree that its difficult to find but the question and problem is in the code and explained there — Rahul Tripathi, Sep 01 '14 at 11:27

Ross Drew · Answer 1 · 2014-09-01T14:01:44.493

You are parsing the date correctly (kind of, see below) with the DateFormatter but not formatting it again for display:-

 sdf.format(defaultDate);

That is to say, when you output it:-

 System.out.println(sdf.format(defaultDate));

A Date object only holds an actual date, not information on how it should be formatted or which pieces of information contained in the Date to display (seconds, minutes, hours, day of week, day of month, month, year). Hence the use of DateFormatter to select only the parts you wish to display, in the order you wish to display them.

Additionally

When you are originally getting the date:-

defaultDate = sdf.parse(sdf.format(Calendar.getInstance().getTime()));

You are getting a Date object (with Calendar.getInstance().getTime()), converting it to a String using your DateFormatter (with sdf.format()) then using your DateFormatter to convert it back to a Date (with sdf.parse()) when you could just do:-

Date defaultDate = Calendar.getInstance().getTime();

Prasad Khode · Answer 2 · 2018-01-03T12:15:46.480

-1

you can use

DateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy");
String displayDate = dateFormat.format(new Date());

this will give you formatted date in the format dd-MM-yyyy as string

edited Jan 03 '18 at 12:15

answered Sep 01 '14 at 11:42

Prasad Khode

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This doesn't work. There is no overloaded `parse()` which accepts a `Date` object – Ross Drew Sep 01 '14 at 13:53

How to get formatted date into p:calendar

2 Answers2