title: Can I copy-paste this code snippet into my Public Domain app?
body: <p>I find <a href="http://android-developers.blogspot.com/2010/07/multithreading-for-performance.html" rel="nofollow noreferrer">this code</a> useful and want to copy-paste it into my application which is licensed as <a href="http://en.wikipedia.org/wiki/Public_domain" rel="nofollow noreferrer">public domain</a>.</p>
  
  <p>It is the Android blog, they often show useful code snippets.<br>
  There is no way to contact the author, and the only license info I can see is "©2008 Google Inc. All rights reserved."</p>
  
  <p>Should I:</p>
  
  <ul>
  <li>Stop worrying and just copy-paste?</li>
  <li>Reimplement it myself without looking?</li>
  <li>Copy-paste and then make it look different?</li>
  <li>Any better solution? ...</li>
  </ul>
  
  <p>Is there a rule like "if shorter than 50 lines then no copyright applies" or something?</p>