title: Should I replace ActionBarActivity with AppCompatActivity?
body: <p>I am following an Android lesson and under the <a href="http://developer.android.com/training/basics/actionbar/setting-up.html#ApiLevel7" rel="noreferrer">Support Android 2.1 and Above</a> section it is said my <code>Activity</code> should extend the <code>ActionBarActivity</code> class to support Action Bar on API-7 onwards.</p>
  
  <p>However, <a href="http://developer.android.com/reference/android/support/v7/app/ActionBarActivity.html" rel="noreferrer">documentation</a> also says that this class is deprecated and I should use <code>AppCompatActivity</code> instead. I'm confused here, which one should I use and why?</p>