title: Get random number from ArrayList?
body: <pre><code>ArrayList&lt;Integer&gt;  lista = new ArrayList&lt;Integer&gt;();
  lista.add(159);
  lista.add(170);
  lista.add(256);
  </code></pre>
  
  <p>For example, I got these 3 numbers in my arraylist and I want to randomly get one of them.
  How is that possible?</p>