NullPointer while using Cursor

Basically I have a method that populates a listview from my database.

I am receiving both null pointers on a cursor and 'unable to stop activity' errors.

This is how I am returning my cursor:

public Cursor getAppointmentsData() { String[] columns = new String[] { KEY_ROWAPPID, KEY_NAMEAPP, KEY_TYPEAPP, KEY_TIMEAPP, KEY_DATEAPP, KEY_COMMENTAPP }; Cursor c = ourDatabase.query(

The follow statement give me cursor.moveToNexe() == false. Does anyone know what is the matter? Many thanks.

I am able to select one contact and get its respective phone number. code:

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == PICK_CONTACT_REQUEST) { if (resultCode == RESULT_OK) { Uri contactUri = data.getData(); String[] projection = { Phone.NUMBER }; Cursor cursor = getContentResolver()

Uri selectedVideo = intent.getData(); String[] filePathColumn = { MediaStore.Video.VideoColumns.DATA, MediaStore.Video.VideoColumns.DURATION, MediaStore.Video.VideoColumns.SIZE, MediaStore.Video.VideoColumns.DATE_TAKEN};

Cursor cursor = getContentResolver().query(selectedVideo,

I'm working on dictionary database, I insert the query when the activity is first launch, it works smoothly, and at the next launch I want to prevent the insertion for the second time, I use this method to prevent insertion by checking whether the row is null or not, but it always rise a java null pointer exception in my logcat.

public boolean isEmpty() { boolean empty = false; Cursor cur

I want to upload image, audio and video files from my app.

I had query title column from database and want to set it in TextView in GridView.

How?

CafeDatasource

public List<Model_Insert> findTblCafe(){ List<Model_Insert> model_Inserts = new ArrayList<Model_Insert>(); Cursor cursor = database.query(CafeDbOpenHelper.TABLE_CAFE, rtv_tbl_Cafe, null, null, null, null, null); Log.i("number", "return" + cursor.getCo

I'm trying to read from a SQLite database using the following code:

public List<DBEntry> getAllDBEntrys() { List<DBEntry> DBEntrys = new ArrayList<DBEntry>();

Cursor cursor = database.query(DatabaseClass.TABLE_APPTS, allColumns, null, null, null, null, null);

cursor.moveToFirst(); while (!cursor.isAfterLast()) { DBEntry DBEntry = cursorToDBEntry(

How can I use AWK in the following situation?

I want to concatenate lines that start with the same column.