Force close on trying to use default constructor
<p>If I'm attempting to define a default constructor for the class which is extending an Activity I'm getting force close on application execution. Why is it so?</p>

<pre><code>public class App extends Activity {


    App() {
              // FORCE CLOSE
    }
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
}}
</code></pre>
