db dbHelper;
    private ListView mListView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        mListView = (ListView) findViewById(R.id.MyListView);

        dbHelper = new db(this);
        populateListView();
    }

    private void populateListView() {
        Cursor data = dbHelper.getData();
        ArrayList<String> listData = new ArrayList<>();

        while (data.moveToNext()) {
            DateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
            Date t1 = new java.sql.Date(data.getLong(2));
            listData.add(data.getInt(0) + ". " + data.getString(1) + "    " + dateFormat.format(t1));
        }

        ListAdapter adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, listData);
        mListView.setAdapter(adapter);
    }