Android app Crash
<p>Why is this:</p>

<pre><code>    public class HelpTab extends Activity
    {
LinearLayout helpLayout; //was changed to LinearLayout helpLayout = new LinearLayout(this);
TextView helpText = new TextView(this);
Button tips = new Button(this);
Button walkThrough = new Button(this);

public void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    buttonCreator();
    setContentView(helpLayout);
}

public void buttonCreator()
{
         //Button featuress defined in here (setText("") and adding them to the layout, addView();)
    }
</code></pre>

<p>Causing my program to crash? 
I have looked at the code extensively and I can't put my finger on it, and the debugger also says source not found when it opens the new page tab thing to tell me what is happening.</p>
