The openOrCreateDatabase (String, int, null) method is undefined

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I'm trying to open database as follows :

SQLiteDatabase myDatabase;
myDatabase = openOrCreateDatabase("sudoku.db", Context.MODE_PRIVATE, null);

This code works fine when I implement it in the Service class, but when I try to implement this in the onPostExecute eventhandler of the GeneraterThread class,implementing AsyncTask, I get the following error :

The method openOrCreateDatabase(String, int, null) is undefined for the type GeneraterThread


It looks like you're trying to invoke openOrCreateDatabase method on GeneraterThread instance which doesn't have the method (and Service class has the method). You probably may pass in a reference to a Context object and invoke the method on it. Or use static method of SQLiteDatabase.openOrCreateDatabase().