Android : How to "push" a fragment?

I'm mainly an iOS developer learning Android development and fragments. I have this class :

public class MyTableFragment extends ListFragment
{
    List<String> dataList;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,  
    Bundle savedInstanceState) 
    { 
        dataList = new ArrayList<Item>();
        dataList.add("Row 1");
        dataList.add("Row 2");
        dataList.add("Row 3");
        dataList.add("Row 4");

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(inflater.getContext(),
               android.R.layout.simple_list_item_1, dataList);  
        setListAdapter(adapter);  

        return super.onCreateView(inflater, container, savedInstanceState);
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) 
    {
        if(position == 0) {
            // What to do here? 
            // I have a MyNewFragment() class that I want to push
        }
    }
}

Now basically in onListItemClick I want to do something like this (that's what I do in iOS) :

MyNewViewController *newViewController = [[MyNewViewController alloc] init];
[[self.navigationController pushViewController:newViewController] animated:YES];

I used to it like this in Android before, when I was using Activity :

Intent intent = new Intent(getApplicationContext(), MyNewActivity.class);
startActivity(intent);

But it looks like now I'd better use Fragments instead and I have no idea of how to do it. Thanks