How I can display items from ArraylIst in Logs?
I have class DataBaseAdapter, where I have Method getCardsArrayList, now I want to display each item from this ArrayLIst in Logs
When I try to write this lines in my MainActivity:
ArrayList<Cards> cards= dataBaseAdapter.getCardsArrayList();
for(int i=0; i<cards.size();i++){
Log.i("WORKS",cards[i]);
}
I have an error: Array type expected, found java.util.ArrayList<com.myproject.Cards>
Cards is my class with getters and setters
Arrayist in DataBaseAdapter:
public ArrayList<Cards> getCardsArrayList(){
SQLiteDatabase sqLiteDatabase= helper.getWritableDatabase();
Cursor cursor=sqLiteDatabase.rawQuery(helper.QUERY,null);
cursor.moveToFirst();
for (int i=0; i<cursor.getCount(); i ++){
cardsArrayList.add(new Cards(cursor.getString(0),cursor.getString(1),cursor.getString(2),cursor.getString(3)));
cursor.moveToNext();
}
return cardsArrayList;
}
Use like this:
ArrayList<Cards> cards= dataBaseAdapter.getCardsArrayList();
for(int i=0; i<cards.size();i++){
Log.i("WORKS",cards.get(i).toString());
}
To access the items of the arrayList you must use get method.
And just to make sure the Cards class items must have a toString method implemented because the Log needs a String object as the second parameter.