Switching from ListActivity to Activity

[jclova]

Hi,
How do I display LinearLayout from ListView?


public class Class1 extends ListActivity {

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
}
}

public class Class2 extends Activity {
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main2);

}
}

how can I display from Class1 to Class2?
Thanks in advance.