Month name is appearing with M+number in datePicker dialog in android

I am trying to display date in datePicker dialog in a format like Sep|29|2016. you can see in following image.

Expected output

unfortunately most of the time i am getting 28|M09|2016 rarely i am getting expected output. you can see in following image

current output

I have tried with following code

public Dialog onCreateDialog(Bundle savedInstanceState) {
    Calendar calendar = Calendar.getInstance();

    System.out.println(calendar.getDisplayName(Calendar.MONTH, Calendar.SHORT, Locale.US));    

    calendar.getDisplayName(Calendar.MONTH, Calendar.SHORT, Locale.US);
    int yy = calendar.get(Calendar.YEAR);
    int mm = calendar.get(Calendar.MONTH);   
    int dd = calendar.get(Calendar.DAY_OF_MONTH);      

    System.out.println("yearr==="+yy);
    System.out.println("monthh==="+mm);
    System.out.println("dayy==="+dd);



    DatePickerDialog datepickerdialog = new DatePickerDialog(getActivity(),
             this,yy,mm,dd);
    return datepickerdialog;
}

Thanks in anticipation.

from Month name is appearing with M+number in datePicker dialog in android