polymorphisim java
<p>I'm getting the fine after computing the method  <code>computeFine()</code> it returns the result <code>0</code>  each time I put any <code>period</code></p>

<p>Please check it here because it is very long and it's hard to past it in SOF</p>

<p><a href="http://paste.org/pastebin/view/40017" rel="nofollow">http://paste.org/pastebin/view/40017</a></p>
