MainActivity.java

public class MainActivity extends AppCompatActivity {

  Cursor cursor;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    // Define a projection that specifies which columns from the database
    // you will actually use after this query.
    String[] projection = {
      Words._ID,
      Words.COLUMN_WORD,
      Words.COLUMN_WORD_T,
      Words.COLUMN_WORD_T2
    };

    cursor = getContentResolver().query(DeutchVContract.CONTENT_URI,
      projection,
      null,
      null
    );

    ListView wordList = findViewById(R.id.wordsListView);


    WordCursorAdapter adapter = new WordCursorAdapter(this, cursor);
    wordList.setAdapter(adapter);
  }
  ...