AndroidStudio Calendar.get(Calendar.DAY_OF_MONTH) nullPointer Exception

Question

I have a problem with my calendar. Here is the code:

Calendar mCalendar = Calendar.getInstance();
mToday[0] = mCalendar.get(Calendar.DAY_OF_MONTH);
mToday[1]         


        

Answer 1

It looks like a bug of Android Studio: 0.5.5

see http://code.google.com/p/android/issues/detail?id=68758

Answer 2

Hardcoded. But must work.

    int[] mToday = new int[]{};
    java.util.Calendar calendar = java.util.Calendar.getInstance();
    mToday[0] = calendar.get(java.util.Calendar.DAY_OF_MONTH);
    mToday[1] = calendar.get(java.util.Calendar.MONTH);
    mToday[2] = calendar.get(java.util.Calendar.YEAR);

Answer 3

I do believe that the way you access the calendar is correct.

I'm guessing the int[] you try to add the values to is not initialized. You must call

int[] mToday = new int[3];

Answer 4

maybe you did not initialize you field. I tried it in Eclipse and this worked

int[] mToday = new int[10];
Calendar mCalendar = Calendar.getInstance();
mToday[0] = mCalendar.get(Calendar.DAY_OF_MONTH);
mToday[1] = mCalendar.get(Calendar.MONTH); // zero based
mToday[2] = mCalendar.get(Calendar.YEAR);