I'm writing a very basic program that aims for the text view to display the phrase "Hello" after a button is pressed on the screen. However, I can't get this program to work; every time I run it, it says that the application has stopped unexpectedly. This is the program I wrote:

public class EtudeActivityActivity extends Activity{
  TextView tvResponse;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    final TextView tvResponse = (TextView)  findViewById (R.id.tvResponse);
  }


  public void updateTV(View v) {
    tvResponse.setText("Hello");
  }
}

Also, I inserted an android:onClick = "updateTV" into my main.xml file for the button.

Thanks for any help!