title: Unable to parse ARGB hex to integer
body: <p>I'm trying to parse an ARGB hex <code>String</code> to an <code>int</code> but it's not working.</p>
  
  <p>My code:</p>
  
  <pre><code>int color = Integer.parseInt("ff686868", 16);
  </code></pre>
  
  <p>Exception:</p>
  
  <pre><code>java.lang.NumberFormatException: unable to parse 'ff686868' as integer
  at java.lang.Integer.parse(Integer.java:438)
  at java.lang.Integer.parseInt(Integer.java:422)
  ...
  </code></pre>
  
  <p>When I try to parse a normal RGB <code>String</code> like <code>686868</code> it does work but when I add the alpha it breaks down. I hope someone can help me. </p>