whats wrong with this code? it always returns savedInstanceState as null
<p>This code always returns <code>savedInstanceState</code> as <code>null</code></p>

<pre><code>public class DemoidActivity extends Activity implements OnClickListener, android.view.View.OnClickListener  {

EditText t1=null;
EditText t2=null;
EditText t3=null;
EditText t4=null;
String data1 = null,data2=null,data3=null;
/** Called when the activity is first created. */
@Override

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    t1=(EditText)findViewById(R.id.editText1);
    t2=(EditText)findViewById(R.id.editText2);
    t3=(EditText)findViewById(R.id.editText3);
    t4=(EditText)findViewById(R.id.editText4);
    Button b1=(Button)findViewById(R.id.button1);
    Button b2=(Button)findViewById(R.id.button2);
    b1.setOnClickListener(this);
    b2.setOnClickListener(this);



}
</code></pre>
