title: What is the difference between URI and Uri class
body: <p>I am confused , how to use <code>Uri</code> because i am using it in android development at <code>Intent's</code> <code>Action dial</code> </p>
  
  <pre><code>Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:555-2368"));
  </code></pre>
  
  <p>What I want to do :</p>
  
  <p>I want to create a file inside which I want to put 2 phone numbers. Then, I want to use <code>toUri()</code> method  with this file, and want to put that <code>Uri</code> in the intent, then I want to see what happens with the intent. </p>