Cursor in sqlite remaining in -1 position

I am coding for an android app, i have 3 columns in my database, i have put values into the database using a cursor and i want to retrieve those and display it. But while retrieving it i am getting an exception i.e. CursorIndexOutofBounds Exception, index -1 requested with a size of 1. During debugging i realised that the cursor pointer is not moving at all, even after using methods like moveToFirst(), moveToNext(), it remains in -1 position. here's my code

Mainactivity.java

public class MainActivity extends ActionBarActivity

{

@Override

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    TableLayout t1=(TableLayout)findViewById(R.id.activity_main);
    TableRow tr_head=new TableRow(this);
    tr_head.setId(TableRow.generateViewId());
    tr_head.setBackgroundColor(Color.BLUE);
    tr_head.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.FILL_PARENT,TableLayout.LayoutParams.WRAP_CONTENT));

    TextView label_bus=new TextView(this);
    label_bus.setId(TextView.generateViewId());
    label_bus.setText("BUS");
    label_bus.setTextColor(Color.WHITE);
    label_bus.setPadding(5, 5, 5, 5);
    tr_head.addView(label_bus);

    TextView label_arrival = new TextView(this);
    label_arrival.setId(TextView.generateViewId());
    label_arrival.setText("Expected Arrival Time");
    label_arrival.setTextColor(Color.WHITE);
    label_arrival.setPadding(5, 5, 5, 5);
    tr_head.addView(label_arrival);

    TextView fare = new TextView(this);
    fare.setId(TextView.generateViewId());
    fare.setText("Fare");
    fare.setTextColor(Color.WHITE);
    fare.setPadding(5, 5, 5, 5);
    tr_head.addView(fare);
    t1.addView(tr_head, new TableLayout.LayoutParams(
    ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));


    try {
        databaseHelper.addFriend("C23", "5 mins", "10");
        databaseHelper.addFriend("DN46", "7 mins", "10");
        databaseHelper.addFriend("C8A", "2 mins", "10");
    }
    catch (SQLException e)
    {
        System.out.println("Exception Caught"+e);
    } 


    MyDatabaseHelper ob=new MyDatabaseHelper(this);
    ob.getFriends().moveToNext();
    int a;
    String b;
    a=ob.getFriends().getColumnCount();
    System.out.println("No. of columns "+a);
    a=ob.getFriends().getCount();
    System.out.println("No. of rows "+a);
    b=ob.getFriends().getColumnName(2);
    System.out.println("The column is "+b);


    boolean c;

    String BUS="",Expected_Arrival_Time="",f="";
    if(ob.getFriends()!=null) {
        System.out.println("Something is present");
       c=ob.getFriends().moveToFirst();
        System.out.println("The truth value is "+c);
        a=ob.getFriends().getColumnIndex("BUS");
        System.out.println("The index of BUS "+a);
        a=ob.getFriends().getColumnIndex("Expected_Arrival_Time");
        System.out.println("The index of expected arrival time "+a);
        a=ob.getFriends().getColumnIndex("Fare");
        System.out.println("The index of Fare "+a);
        System.out.println(ob.getFriends().getCount());
        a=ob.getFriends().getPosition();
        System.out.println("The position of the cursor is "+a);
        c=ob.getFriends().moveToNext();
        System.out.println("Truth value of c "+c);
        a=ob.getFriends().getPosition();
        System.out.println("The position of the cursor is "+a);

        TableRow tr = new TableRow(this);
            tr.setLayoutParams(new TableLayout.LayoutParams(
                    TableLayout.LayoutParams.FILL_PARENT,
                    TableLayout.LayoutParams.WRAP_CONTENT));

            TextView labelBUS = new TextView(this);
            labelBUS.setText(BUS);
            labelBUS.setTextColor(Color.WHITE);
            tr.addView(labelBUS);

            TextView labelARRIVAL = new TextView(this);
            labelARRIVAL.setText(Expected_Arrival_Time);
            labelARRIVAL.setTextColor(Color.WHITE);
            tr.addView(labelARRIVAL);

            TextView labelFARE=new TextView(this);
            labelFARE.setText(f);
            labelFARE.setTextColor(Color.WHITE);
            tr.addView(labelFARE);

            t1.addView(tr, new TableLayout.LayoutParams(
                    TableLayout.LayoutParams.FILL_PARENT,
                    TableLayout.LayoutParams.WRAP_CONTENT));


            if(!ob.getFriends().moveToNext())

             @Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_main, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}

}

MyDatabaseHelper.java

public class MyDatabaseHelper extends SQLiteOpenHelper { private static final String DATABASE_NAME="Bus_Database";

 public MyDatabaseHelper(Context context) 
 {

    super(context,DATABASE_NAME,null,1);
}

public void onCreate(SQLiteDatabase database) 
{
    database.execSQL("CREATE TABLE busdb (BUS TEXT, Expected_Arrival_Time TEXT, Fare INTEGER);");
}
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) 
 {

    db.execSQL("DROP TABLE IF EXISTS busdb");

    onCreate(db);

}

public void addFriend(String BUS,String Expected_Arrival_Time,String fare) throws SQLException

{

    ContentValues values=new ContentValues(3);

    values.put("BUS", BUS);

    values.put("Expected_Arrival_Time", Expected_Arrival_Time);

    values.put("fare",fare);



    getWritableDatabase().insert("busdb","BUS",values);

}

public Cursor getFriends()

{

    Cursor cursor = getReadableDatabase().query("busdb",

            new String[] { "BUS", "Expected_Arrival_Time", "Fare"},

            null, null, null, null, null);
    ;

    return cursor;

}

}