How to format a date android?

Question

I have a date in String an I using this:

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy HH:mm");
dataUltima = sdf.format(sdf);

to format the date. But this method return the actual date of system. How can I only format the date without change the date.

Obs. I'm getting this date from a server, it come to me yyy-dd-MM and I want it dd/MM/yyyy

what is type of the date that you get from server ? – pouyan Jul 16 '13 at 17:25 — pouyan, Jul 16 '13 at 17:25
I'm getting a String form the server. – Roland Jul 16 '13 at 17:28 — Roland, Jul 16 '13 at 17:28

score 2 · Accepted Answer · answered Jul 16 '13 at 17:47

I am not sure what is your problem.

Try it. Maybe help.

String server_format = "2013-01-02";    //server comes format ?
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
try {

    Date date = sdf.parse(server_format);
    System.out.println(date);
    String your_format = new SimpleDateFormat("dd/MM/yyyy").format(date);
    System.out.println(your_format);    //you want format ?

} catch (ParseException e) {
    System.out.println(e.toString()); //date format error
}

score 0 · Answer 2 · answered Jul 16 '13 at 17:28

0

Ty following:

try
{
  //create SimpleDateFormat object with source string date format
  SimpleDateFormat sdfSource = new SimpleDateFormat("yyy-dd-MM");

  //parse the original date string(strDate) that you are getting from server into Date object
  Date date = sdfSource.parse(strDate);

  //create SimpleDateFormat object with desired date format
  SimpleDateFormat sdfDestination = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss");

  //parse the date into another format
  strDate = sdfDestination.format(date);

  System.out.println("Date is converted");
  System.out.println("Converted date is : " + strDate);

}
catch(ParseException pe)
{
  System.out.println("Parse Exception : " + pe);
}

Source: Convert date string from one format to another format using SimpleDateFormat

Hope this helps.

answered Jul 16 '13 at 17:28

Shobhit Puri

25,769
11
95
124

I'm getting a error, nullpointexception 07-16 14:41:10.709: E/AndroidRuntime(28291): Caused by: java.lang.NullPointerException 07-16 14:41:10.709: E/AndroidRuntime(28291): at java.text.SimpleDateFormat.parse(SimpleDateFormat.java:1001) 07-16 14:41:10.709: E/AndroidRuntime(28291): at java.text.DateFormat.parse(DateFormat.java:624) 07-16 14:41:10.709: E/AndroidRuntime(28291): at com.example.Tappa.SegundaTelaActivity.onCreate(SegundaTelaActivity.java:171) – Roland Jul 16 '13 at 17:42
Which is `171` line in your activity? Also make sure that `strDate` is not null before you pass it into this for converting date. Are you logging the date which comes from your server. Is it non-null? – Shobhit Puri Jul 16 '13 at 17:45

Vrashabh Irde · Answer 3 · 2013-07-17T17:03:39.503

0

Try this:

String date = "2011-11-12 11:11:11"; //Fill with sample date received from server
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-dd-MM HH:mm:ss");
Date testDate = null;
try {
    testDate = sdf.parse(date);
}catch(Exception ex){
    ex.printStackTrace();
}
SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy hh:mm");
String dataUltima = formatter.format(testDate);
System.out.println("Date is "+dataUltima );

edited Jul 17 '13 at 17:03

answered Jul 16 '13 at 17:29

Vrashabh Irde

14,129
6
51
103

I'm getting a error to Caused by: java.lang.IllegalArgumentException 07-16 14:50:00.239: E/AndroidRuntime(29237): at java.text.DateFormat.format(DateFormat.java:365) 07-16 14:50:00.239: E/AndroidRuntime(29237): at java.text.Format.format(Format.java:93) – Roland Jul 16 '13 at 17:52
What is your server date coming as? This works for me if the date that you get from your server is of the form "yyy-dd-MM" only with any time component . Is this how it comes ? If not it will throw an error – Vrashabh Irde Jul 17 '13 at 06:23
It comes for me as a String: "yyyy-dd-MM HH:mm:ss" and I want it dd/MM/yyy HH:mm – Roland Jul 17 '13 at 12:37
Oh in your question you said just yyy-dd-mm. Then you have to format it as is. edited – Vrashabh Irde Jul 17 '13 at 17:03

score 0 · Answer 4 · answered Jul 16 '13 at 17:33

Try this code:

    Date newDate = new Date();

    // Print the date with the server format
    SimpleDateFormat sdfServer = new SimpleDateFormat("yyy-dd-MM ");
    System.out.println("Server date " + sdfServer.format(newDate));

    // Create a new formatter to get the date in the format you want
    SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy HH:mm");
    String dataUltima = sdf.format(newDate);
    System.out.println("System date " + dataUltima);

How to format a date android?

4 Answers4

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