I'm using the following code in the activity ApplyLeave. I would like to pick the date and save the date, month and year to public int variables.

```
            final Calendar calendar = Calendar.getInstance();
            DatePickerDialog dialog = new DatePickerDialog(ApplyLeave.this, new DatePickerDialog.OnDateSetListener() {
                @Override
                public void onDateSet(DatePicker arg0, int year, int month, int day_of_month) {
                    calendar.set(Calendar.YEAR, year);
                    calendar.set(Calendar.MONTH, (month)); //add +1 for next month calendar
                    calendar.set(Calendar.DAY_OF_MONTH, day_of_month);
                    String myFormat = "dd/MM/yyyy";
                    SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.getDefault());
                    dtTmp = sdf.format(calendar.getTime());

                }
            },calendar.get(Calendar.YEAR),calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH));
            dialog.getDatePicker().setMinDate(calendar.getTimeInMillis());//used to hide previous date,month and year
            calendar.add(Calendar.YEAR, 0);
            //dialog.getDatePicker().setMaxDate(calendar.getTimeInMillis());//used to hide future date,month and year
            dialog.show();
            String[] selTmp = dtTmp.split("/");

            selBdate = Integer.parseInt(selTmp[0]);
            selBmonth = Integer.parseInt(selTmp[1]);
            selByear = Integer.parseInt(selTmp[2]);
            stDt = MyUtility.getJulianDay(selByear, selBmonth, selBdate, ApplyLeave.this);
            eBegin.setText(dtTmp);

```

I get the error

> 
> java.lang.NullPointerException: Attempt to invoke
> virtual method 'java.lang.String[]
> java.lang.String.split(java.lang.String)' on a null object reference
> at Line "String[] selTmp = dtTmp.split("/");
> 
> 
> 

If I comment this line and the three following, the date gets picked up, but need to click twice to get the correct date set.

The datepicker code is taken from [Answer by @Sunil](https://stackoverflow.com/questions/16749361/how-set-maximum-date-in-datepicker-dialog-in-android/46441581?noredirect=1#comment112276801_46441581).