title: What is the difference between finish() and ActivityName.this.finish()?
body: <p>Is there any difference between <code>finish()</code> and <code>ActivityName.this.finish()</code>? If we have activity with name <code>SampleActivity</code>, we can finish it by calling <code>finish()</code> and by <code>SampleActivity.this.finish()</code>. What is the difference?</p>